15 a pop? man! Order bulk, save loads :-) You can order quantities that work for you and still save a ton of loot by ordering even as little as 40 rats at a time (my typical order now is 400 every 3 months). . . as for me, if one snake rejects I offer to another. If none take, and its been less than an hour at room temp slowly thawed, I'll refreeze ONCE separate from the rest. After that its trashed