that's stupid. hundreds.
no
If it can, it hasn't been proven yet. Personally, I would have to say no. I smoke cigarettes daily and still pass my parent's urine and hair drug tests. I think the only way you could possibly fail a drug screen because of nicotine is if they were specifically looking for nicotine.
You will fail if they test for meth. No question about it.
No.
yes you will
of course you can i have done it heaps of times
yes
yes if you smoke more than 4 oz
No. No.
Yes, they can test for almost anything these dayz
no you would have to be in a vehicle for instance to get a contact buzz and fail a drug test.
no you must smoke it the test is for metabolites not weed