ok so i went to the store to buy a rat for my BP and they were all out so i got a few mice to tie him over till they got some in. when i got home i was looking at the mice and one of them has quite a bit of blood comming out of its ear!! what can cause this and WHY the hell did they sell me a sick mouse??? needless to say tomorrow morning im going back in to get my $$ back and im on the hunt for somewhere else to get my feeders! just curious as to why this critter is bleeding, any ideas would be helpful, Thankx