does any one have a web site to buy some laughting gas

no, that would be illegal. Only doctors and dentists can legally buy nitrous oxide. Unless you just want to buy a bottle from a car shop.

put your face by someone butt when they pass gas l guarantee it will make you laugh

haha l got a good one. buy a whipped cream bottle thing that takes the cream bulbs. just gas up the unit and pump it down. its just gas that comes out and you cant stop laughing. it makes everything sound different and your voice changes. hahahahaha u should try it

Yes. l just happen to have a really good chef in my family. and they use it for whipping up some good times as well as whip cream. Below is the link to order on line. You can get the dispenser, and quality nitrous oxide (laughing gas).
Here is the link:
http://nitrousoxidechargers.com/