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: so, i was all cuddled up under covers with the significant other and about to engage in coitus when i heard my front door slam. (consider that i leave it unlocked whilst i'm in the house and not asleep) in fear i get up out of bed and walk down the corridor to see to my relief that it was only my best friend coming in to say hi... stood in abject in relief it took me about 10 seconds and him looking very bemused for me to realize i was stood, stark-naked, in my corridor in front of my best friend with my naked partner just behind me. worse, that i was going to defend myself against a possible intruder stark naked and unarmed. *face palm*

TIFU Leaving my front door unlocked whilst getting in on the dirty. (NSFW)