how Snap got his name

Today was Terry's day off. This morning he was being so helpful and holding Evie (so I didn't have to listen to the screaming) while I helped Noah go potty. Success! When I came out Terry said that the puppy got hurt! He had been swinging Evie on the porch swing and the puppy was up there with him. The swing has spaces between the wood pieces so they're like little bars. Puppy went to jump off and got his little paw stuck, his left hind paw. So he was left swinging in the air until Terry could put Evie down on the ground to unstick his poor paw. He explained it to me like, "Jump, snap, crack, yelp, yelp, yelp, yelp, put Evie down, get dog." Yeah, poor puppy. He heard a snap and puppy wouldn't put weight on his hind leg so we thought we better take him to the vet.
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Terry went with Noah to the vet who said he didn't think it was broken - could feel it wasn't and thought it was a severe sprained ligament. He gave him a shot that he needed, some flea and tick stuff, and a pain pill and the dog was walking on it when he got home. This evening he was back to chasing Noah around the back yard. Here are some of those shots!

Noah really enjoys having the puppy chase him. He yells "Run" and off they go!

Noah was kind of snuggling with him.
So, Terry's idea for a name is Snap since one of the first experiences with him was hearing his leg snap. What do you think? We're not sure yet. Noah pronounces it "Nap." Yeah, any other ideas?