Dennis Looks Like a Registered Sex Offender - S3-E11
Continuity mistake: After Mac's dad crosses the first name off the list, he folds the paper back up and caps the sharpie. In the next shot, he's folding the paper and capping the sharpie again.
It's Always Sunny in Philadelphia (2005)
1 mistake in Dennis Looks Like a Registered Sex Offender - chronological order
Starring: Danny DeVito, Charlie Day, Glenn Howerton, Kaitlin Olson, Rob McElhenney
Genres: Comedy
Frank Reynolds: We gotta definitely write a song about how we do not diddle kids! "Do not diddle kids, it's no good diddling kids."
Mac: There is no quicker way for people to think that you are diddling kids than by writing a song about it.
Trivia: According to the show's assistant prop manager, there were around 100 "poos" created for this episodes, many of which were made from different materials, including a food thickening agent, sheetrock mud and a cookie dough mixture.
Bums: Making a Mess All Over the City - S3-E14
Question: Does the junkyard cat actually belong to one of the actors or is that a whole different deal?