Oh, no, I'm so, so sorry ! My deepest sympathy to you + your family . I was hoping it was something that he could get through, but sometimes the little ones are just fragile once they become sick. I think a little box in the backyard would be fine for Perry. Try to be strong for your son, although crying is normal even for us adults, he will need you to reassure him that you did what you could and you guys loved Perry and he is no longer in any pain. Maybe in the future you can get another one, maybe a bit larger + sturdier, if and when the right time comes. Again, I'm really, really sorry.