Firstly, you need to get rid of those stick on thermometers. They're complete junk.
Find yourself an Accurite:
http://www.acurite.com/weather/humid...red-probe.html
You can find them at Walmart, I think. We don't have them in Canada. They monitor the hot spot, cool spot and humidity.
Secondly, don't listen to the pet store. Half the time they dont know anything about the snakes they have.
Dont smack him with a mouse. That's just going to make him stressed. :/
Don't out him in sink to feed him. Feed him in his cage. . Z