Yep, this happened to me at a Marriott on our trip to Boston. The hotel room got ants somehow and I stupidly had set out my clothes on the floor for the next day. I didn't realize there were ants there until I put them on and got bit all over.
Needless to say I have formal complaints in to priceline and to Marriott. Worst stay ever.
Re: Ants in my pants...
http://oi62.tinypic.com/2w73hq9.jpg
I've used priceline probably about 100 times and have never had a problem when choosing 3 star hotel or above. It's awesome to pay so little for an upscale hotel. If you choose below a 3 star I might be worried, but 3 star is always a Hilton, Marriott, Sheraton etc. I've never had a problem in all of my stays until this one.