Western Flyer Express Constant Drug Testing...with no reason.. Oklahoma City Oklahoma

I have been employed with Western Flyer Express going on 7 years..no wrecks and can't say they been bad to me..with the exception of constant drug testing every few weeks..I am starting to believe this is bordering on harassment. All my tests have come back good and don't understand why they keep nailing me on this..They have no valid reason to even believe I've been on drugs...I do my job and for the most part leave them alone as they do me with the exception of the constant drug tests. Which makes me think that they know il pass them..so they send me to get their quota..I agree with some of the other posts about sexual harassment from other drivers..they have a bunch of perverts for drivers..anyway if your a good driver and keep your nose clean they will drug test you every 3 or 4 weeks...just beware