So Chavez can't get a fake rooster and urine to beat the test

[pesticid]

I was just watching Entourage and I know it's the movies but since I have no experience taking a pee test that's what I am basing my argument on. So Vince pretty much used a fake penis and somebody else's urine to beat the test. Yet Chavez doesn't even give fake samples, but could he do it though if he is forced to give an urine sample? Has it been done it the past? It seem much easier to do than to go around a blood test. Also, Pacman has an entourage of about 50 guys around him, do they go to the washroom with him?

[kill the body]

It is very possible and people do this all the time to beat drug tests while on probation. Only thing is the urine has to be a certain temperature so when would he put it on?cause once you enter the arena someone from the commission is with you all the time.