most places make you leave the door open and some even watch you. if i were you and they tried to watch you, id demand some privacy. if you work out, it should be out in a month maybe. it all depends on the person. but after 8 years everyday, it could really be storing up. just stop exercising about 4 days before your test and drink about a gallon of water an hour and a half before your test and i think you should be fine