the morality of a broken jaw

[newticus]

I work at a pet store in the reptile dept. We sold these people a uromastyx which they killed, we replaced it with a new one as our warrenty dictates. They then dropped this one on its face breaking its lower jaw. It is such a bad break that there is now a gap between the the two pieces. My pet store does not provide vet visits for reptiles. My mangager told us to put it in the freezer to kill it. The manager of the bird dept. couldn't do it and offered to nurse it back to health (at this time we didn't know the extent of the damage) So it had been under a heat emitter and has been receiveing watery baby mash and purree lettus for the last 5-6 days. It is now VERY skinny, it urinates daily and it can open it's mouth but i don't know if it can ever heal due to the distence between the bones. I guess my morality question is should we have kept it alive to slowly starve or have frozen it to death when it was first brought to us? The next one is should we now put it in the freezer since healing seems remote? The pet store won't even take it to the vet to put it to sleep humanly.