Am i weird? is there something wrong with me?

If I go 2 the public ladies room and someone let's loose I can't contain my laughter I know everone farts and poops but today at my job and I work at a mercedes dealer someone really went buck loose and I started cracking up loudly embarrasingly I had to walk out and hide somewhere so I can stop laughing....I m 23 and I really don't mean to be imature but I really can't help it