I always carry a bludgeon or el cheapo broadhead with me while deer hunting. I've shot a couple squirrels and rabbits, two groundhogs and fox and a bobcat while deer hunting.

I use arrows I find in the $2 bucket at bass pro or other sporting good stores.... people take them out to look at them and don't put them back in the box and some poor sap gets 11 instead of 12. Sometimes just one will be missing and they'll throw the other 11 in the $2 each bucket... so long as they are spined right they are usually close enough to be effective... and with a squirrel or a rabbit you really cannot wound it.... if you hit it anyplace where there is bone its in big trouble. And of course if you miss then who cares....