Semen Analysis

Sounds weird but I have to go in for semen analysis on Tuesday for an operation...are they going to check or discover that I've smoked recently?

I've never heard of that before. If someone's looking at your jizz, then I doubt it would be for drugs. Also, if it's not for a job, or probation or something, what does it matter? just tell them you get high. They can't do shit about it anyway.