I'm a little concerned about another small situation that could potentially develop after games. I know that hosts of parties are responsible for their guests for leaving their event under the influence so should they get into a car accident, the host shares in the responsibility. Can the same apply with an airsoft game?
Regardless, I don't like idea that my team or the opposing team is doped up, high in the sky, and/or too wasted to aim properly. Its a safety hazard that can potentially injure them and others around them and, considering the injury, can bring more unwanted bad publicity to airsoft. I don't care if you can handle it, as a host, I wouldn't risk it.
"Hey I'm the first one to say its a great country but its a straaaaange culture. This is a place where gun store owners are given a list of stolen credit cards but not a list of CRIMINALS and MANIACS. And now they're thinking of banning toy guns...AND THEY'RE GONNA KEEP THE F**KING REAL ONES!"
-George Carlin 1937 - 2008 (RIP buddy)