Clean top straight out the washing machine and onto the radiator last night. Have just gone to put it on this morning and there are holes in it (definitely weren't there when I wore it a couple of days ago) and the area around the holes is hard and sticky.
The other day I had a pair of pyjamas that I had to put back in the washing machine as they had the same stickiness on them but I didn't think anything of it until now.
I'm certain this is happening during drying rather than there being a problem with the washing machine.
Please reassure me that I don't have rats or mice 
