i've been smoking off and on for over 15 yrs. I had to take a random test once for work. i had 1 days warning so i used some one else's pee. double zip lock bagged it and took in a tiny pair of scissors to cut a hole. i put it in my pants (like a maxipad, yes gross i know but i was desparate) to keep it warm. passed with no problem.
2nd time i was getting a job at a bank and had to take a test. it was last minute and i figured i'd fail but gave it a try anyway. my friend had told me about drinking vinegar. i believe this would be the same as drinking pickle juice. i remember the day i mixed about 1/4-1/2 cup of vinegar with some orange juice for taste. i was so sure it wouldn't work i smokes a fatty as i drank it.
Couldn't believe i passed the test and got the job.