Only if everyone you hang out with smokes a lot of weed.
But if you are going that route, anything 420 pisses me off. If you are going to smoke go for it. It is not necessary to have a 420 shirt, hat, and bracelet while you wait for the clock to turn.... It is also my bday, so when ever I show my Id or fill out a form they think I'm being a cool guy and start giggling or telling me how cool it is to be born that day.
Also, talking like beavis and Butthead, Neapolian dynamite, chapelle, Jim carry, etc.