litter box training and neutering

Question
hi,
first of all thank you so much for your time.
my netherland dwarf is about 4 months old and i got him when he was only 6 weeks old. i had intended for him to be an indoor bunny so i litter box trained him from day one. however,for about a month,he would suddenly forget how to use it. whenever i clean out his box,he would start peeing on the floor or the bedding until i put some of his urine in the litter box and then he will remember. he did fine for the first couple of months, why is he suddenly forgetting now?

also, although he was litter box trained for his urine, he never ever learned to put his "pellets" in there as well. i want to let him roam around the house, but i can't let him do that when he keeps pooping everywhere... do you have any tips for that?

finally, i was thinking of neutering him. do you think that is a good idea?

thank you very much for your time and i hope to hear from you soon!

Answer
He is reaching his sexual maturity, and hormonal bunnies totally lose their litterbox habits.  You might read this FAQ, http://www.rabbit.org/faq/sections/litter.html for tips on training.

But for now, getting him neutered is going to do the most to improve his behavior.  Unneutered male bunnies have been known to spray also, and they prefer to spray the object of their affection, which is usually you.

Hope that helps.

Kim