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: this happened yesterday. throwaway account because i need to vent and then forget about the whole situation. 

i had just gotten out of class and wanted to go grab a bite to eat. i decided i was in the mood to cook dinner for myself, so i went to the grocery store. i park, get out of my car, and begin walking across the parking lot. right when i'm about to enter the store, this kid (who looked to be around 12-13) runs up to me and says that he's been waiting for his older brother to pick him up for the last hour, and can he please use my cell phone to call said brother. i tell him that's fine, pull my phone out, and ask the kid what his brothers phone number is. the kid looks a little taken aback, and i start to get the feeling that maybe all is not what it seems. the little dude then says that he needs to dial the number himself, and can he please see my phone? 

i like to give people the benefit of the doubt, but this kid just made me uneasy. i told him i would either call his brother myself or give him some change for a payphone, because i don't know him and therefore do not trust him with my very expensive phone. he continued to insist to see my phone, and kept sidestepping in front of me when i tried to just walk away from him. i get fed up with this, and basically just walked through him in an attempt to get away. he got brushed to the side, no harm done. i walk into the store, and the kid follows me, continuing to badger me about the phone thing. i figure if i ignore him, then he'll just go away. needless to say, i'm getting some weird looks from other shoppers as i walk in. after he realizes i'm not going to let him see my phone, the kid shuts up, but keeps following me. i'm getting really weirded out at this point and i'm contemplating calling the cops or something. just at the nick of time, an employee walks by, and i get his attention, and tell him that this kid really needs to use a phone to call his brother so he can go home. 

the kid then proceeded to flip the fuck out. he points at me and yells "he touched me!!" "please help me!" i don't really know how to react, so i just kind of look at the employee, who judging by the expression on his face, did not want to be dragged into this situation. 

now here's where i fucked up. i let my temper get the best of me, turned to the kid and shouted "leave me the hell alone! what is your problem? i don't even know you!" 

so at this point, to the casual observer, i am a child molester shouting at a kid in the middle of a grocery store. 

the employee who i mentioned earlier is now messing with his phone and says to me, "i'm calling the cops." i'm pretty convinced of my innocence, even though i'm sure no one else is, so i encourage him to do so. 

once the kid realized shit was actually going to go down, he bolted, and i assume made it out of the store. i explain to the employee what was going on and left. 

i went through a drive through on the way home and drowned my anger and embarrassment in unsaturated fat and cholesterol.

TIFU by not letting a kid use my cell phone.