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: today, i went to my first ever convention and it was everything i thought it could be. there were some seriously incredible cosplays, cool booths, and best of all: some of my all-time favorite actors.

my buddy and i go up to the one guy we have both been waiting to see all day. he is kind, down to earth, and totally listens to our obnoxious fanboy ramblings. he even agrees to take a picture with us. he tells us about his upcoming projects and we are totally stoked. 

now, it is important that i add this piece of information: our hero has a prosthetic leg.

as we prepare to leave him, i emphatically say "break a leg!"

he looks at me with the anger and confusion. i am stunned with awkwardness and don't know what to do. so my first instinct is to cover my ass with an apology. what phrase does my socially inept brain choose? 

"i better leave before i put my foot in my mouth again."

i then slunk away quietly. why do people let me out in public.

TIFU Wishing Luck to One of My Favorite Actors