Quote Originally Posted by elevatethis
Its very likely that the frozen rodent thawed at some point before it was put into your freezer or en route. Thawing and rethawing rodents generally weakens the rodents skin and everthing non-bone that holds them together, hence why high pressure would cause the blood and guts to break out.
Ahh, that makes sense. I bet that batch of hoppers was thawed and re-frozen, either by the pet store or by their supplier. That would explain why the problem was only with the hoppers (both of which I bought at the same time). Thanks.