wasn't there a scene in the animated movie where a couple of them (forgot which ones) were looking at a Playboy Cybertron with Arcee on it in a provocative pose? granted it's for robots, but Cybertronian libido was established. i guess it's just another one of those things that prove they're living, sentient organisms as opposed to plain robots that can't feel anything. i guess the humor in 1 and 2 were still acceptable for me and didn't bother me too much, although i guess by 3 people would've gotten tired of them. i'm more bothered that after part 2, there was no consistency and establish a smoother flow of the story than the humor. the humor i didn't have problem with as long as it was just meant as a one-time gag so thank God Bumblebee peeing was not repeated in the sequels, although, yes, it was probably a pointless scene anyway because then we would be asking if Cybertronians could pee which of course they don't have to because their excretory systems are going to be a whole lot different than humans. it's just one of those sophomoric dumb jokes michael bay wants to put in his movies.