I have a motorbike and i love to drive everyday. However, it is actually a bad habit because accidents can happen at any time if i have lazy and crazy movement.
I dont see riding motorbike as a bad habit. Accidents can happen even you're careful, in fact even at home and doing nothing accidents can happen in different way you never predict.
As for me I think my bad habit everyday (that started after I return back to work) is skipping breakfast. Drinking herbal tea is enough to start my day, but im trying to change it.