If you can eat cockroaches, you can probably check out all those Tupperware containers on the bottom shelf of the fridge, way in the back. Shake them a little, and if you get a response (tiny cries, scratching, etc), it has evolved to a higher life form, and can probably be killed and eaten.
Sue
That's also the "fun" part of gathering up the "Mystery Meat" from the bottom of the refrigerator compartment!!!
Side note to CANOEDOGS: Thanks for starting this thread. I did need a break!!!