I peed in Daddy's chair!

i would take him to the vet and have him checked for a UTI, or possible urinary blockage. sometimes stress (like owners being gone) can bring on these things, or it could have been coming on slowly. if a cat isn't using it's litter box, and it always did before, there is usually a medical reason for it. good luck!

After ruling out medical issues at the vet.. make sure that your parents clean the chair (and couch) with an enzymatic type pet stain cleaner (something like Nature's Miracle). Because even if they can't smell it, you can and since it smells like a place to pee... you'll want to keep visiting that spot.

Oh my yes, get checked for UTI. Also, tell your Mommy to give you distilled water only-- this is so much better for your urinary tract. And may I ask, have you been "FIXED". I know it wasn't broken-- but!