Baseball - This may not seem weird to most of you but being English I'm generally treated like a freak for being into it.
Red Dwarf - It's still treated like a weird, cult show by everyone I know even though it is unbelievably awesome.
JetPack Joyride for the iPhone - It should be a nice way to pass the time on the train... however, I find myself sat in bed at one morning trying to get a jetpack that fires fruit and a mohawk hairstyle for my character.