If he's young, he'll go back and forth pretty easily.

I can greatly sympathize with you. I found out a week ago why people tell you not to try cervical dislocation on rats bigger than weaned. I didn't think it would be that hard if I used a sturdy screwdriver to do it. I was greatly mistaken.

I had no idea how thick and heavy the spine on a larger rat is, and after three unsuccessful attempts to dislocate the neck of the now pitifully squealing rat, I did the only other thing I could think of and whacked it's head with the screwdriver handle as hard as I could. That did the trick, but I could still hear it's terrified and pained squeals in my head for the next several days, it was quite upsetting to say the least.

Gale