I'm at my wit's end so desperate for some ideas that might help with this! I've got a house bunny, normally very well Litter trained, but he was ill recently so we had a few accidents on the carpet. I've been able to clean all of them with warm water and white vinegar with no problem, all bar one! There's one particularly stubborn stain which is also in his favourite spot to sit (I don't know if him sitting there is making it worse). I've tried warm water and white vinegar like I did with the other stains. I've tried pet safe carpet cleaning spray. I've tried 1001 stain remover, and now all I seem to be doing is spreading it round and making it worse! The carpet is old so I don't need it to be perfect but at the moment it stinks, worse than it ever was when it first happened. It's in my home office as well so I can smell it when I'm trying to work I'm sure I've made it worse and I'm all out of ideas! Anybody got any novel ideas I could try?