Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: as it's the case with most of the posts here, the fu didn't happened today but last saturday. so here it goes:

las saturday i was hanging out with some friends and we decided to do the usual: play some beer pong and smoke weed in a public park (this is in a small city in mexico, drinking in public is the usual way of doing it) . a friend (let's call him chan) invited a girl he had been seeing for a while because he was gonna ask her to be his girlfriend. he told the rest of us to please not smoke weed in front of her. 

we were playing beer pong until we ran out of beer. my friend (let's call him andy) saw this as an oportunity to get away from them and smoke a bowl. the two of us went to the store, got some beer and cigarrettes and headed back to the park only this time we went to the opposite side of the park and started smoking weed.

when we were done we got in the car and went back to the other side of the park. when we arrived we noticed the rest of our friends were gone leaving only chan and this girl alone. it was obvious he was gonna make his move so andy and i stayed in the car until the other guys returned. we were really fucking high.

after maybe 10 minutes they arrived and asked us if we had any weed. this is where the fu started. my friend got out of the car while i was looking for my lighter. i couldn't find it so i took my grinder and bowl out of the car and asked him to look for it (i thought he had it, i don't know why). he got in the car and noticed my window was up. he put the keys in the car and rolled them up, found the lighter and got out of the car. . . without taking the fucking keys off.

after he realized his mistake, i putted the grinder and bowl on top of the trunk to see if there was any way to get in the car. this is when shit started to hit the fan: the fucking army passed right by us (it's kinda normal to see them in the streets from time to time but this time we were not aware they were in town) and they lit the car with their flashlights (where the grinder and bowl were). they stopped and we were thinking "ok, we're fucked". you guys may not be familiar with the mexican army but let me tell you something: they do anything but help people. they are assholes, bullies and abuse their authority. luckily, they drove past us and we were relieved. "yay! they didn't beat us up". 

we still had to deal with the keys locked inside the car. . . i asked andy if  he had a spare key and he said "yeah. . . inside the car.". fuck. a friend suggested we should go to his house to get some tools. we arrived at his home and shared a bowl with another dude while the rest looked for the tools (i was already high and wasn't thinking straight, don't judge me). the best thing they could find was a cloth hanger.

we went back to the park and tried to use the cloth hanger to get  the windows open. nope. aaaaaaand the police arrived. i quickly hid the grinder and bowl under the car and they asked us what we were doing. we told them what was happening and they laughed. they said they were gonna help which would have been great if we didn't have a bag with maybe 3oz of weed inside. . . if they opened the door the smell would give us away. we were trying to convince them we could handle it but, for the first time, the local police decided to be nice and helpful and get the car open for us. have you ever tried to keep a conversation with a cop while high? not easy. so, after another 30 minutes they finally got the back window to open. i ran towards it and got in the car, quickly closed the dor and got the keys out. they laughed and we gave them some money for the trouble hoping they didn't decide that they needed proof that we owned the car. luckily they didn't and we were free to go.

TIFU by being too high to look for my own lighter.