Subbing: My Fear (pre-employment)

Hey guys, so I applied to a bunch of jobs and have been clean for a while.... however, I got a little too inebriated and smoked some weed the other day. I've never been drug tested before and read the substitution thread and some others. I'm pretty sure I have access to some clean urine, but I have a few concerns...

My biggest worry is the temperature. I know you put it in a 2oz bottle, use hand warmers, and tuck it behind your sack... but I fear that I'll be in the waiting room forever and my specimen will cool down too much in the process. I don't even know what hand-warmers look like or how hot they get.... or how long it takes 100 degree piss to cool down if it's tucked in your crotch.

Also, storage. I read that it should be used within 8 hrs. but if I can get someone's piss a day or two in advance I can freeze it right? How long would it take to thaw and warm up to 100?

Like I said, my biggest fear is the temperature. I am a naturally sweaty bastard and very heat sensitive, but I'm still very worried...

I don't even know if I'll even be drug tested and I've been so incredibly stressed that I just crave weed... and I don't want to waste all this time NOT smoking because it's not even a guarantee that any of these jobs will bite and I'll be clean for months and months. I figure I'll just smoke and sub instead hahaha, but I'm just a little apprehensive.


Also, to all you chronic smokers out there, have you had any luck with dilution?