Unbearable smell in friends house

[kcchiefette]

My friend had to go away for the day (a drive about 2 hours away) and asked me to check on hIs cats during the day.

I have been up a fair few times and the house is a bit messy as you can imagine a single man's house to be.

Anyhow, the last time I was up for a visit, the smell of amonia was dreadful from the litter trays. They were full, the cats had started flicking their poo out and playing with it on the floor. I had to leave after half an hour because I was getting a headache and the next day I felt really sick as well.

I called up today, and the smell is there again, only worse. The litter trays are full again and the smell was so intense, I had to put my jumper over my nose to mask the smell. I checked on the cats, left them food and left. Friend will be back 8pm.

For those that have cats, I am assuming this is not normal?

I have never owned cats so dont know much but anybody else's house who has owned them has never had this smell and I am assuming litter trays need to be cleared out at least once a day?

How do I approach this with my friend? I dont want to go up there again to visit if the house will be smelling so badly of amonia and making me feel unwell.

Oh and male un- neutered cats urine smells so he should get them "done"

Just dont do it in future and if he asks why be honest the smell is because the litter trays arent being emptied and their pissing and shitting elsewhere. Also he will start smelling as well the smell is awful i know.

Late to the party here but as someone with zero sense of smell I would really need someone to tell me if there was a horrible smell in my house. I would have no idea. Obviously I'd clean my cat's litter tray anyway but if he's not very tidy and has no sense of smell, you need to tell him.