[quote=sdsester;793599]He or she is probably not alone. Once squirrels get in the habit of visiting it is hard to get them to leave. Unlikely you would get bit or rabies but they can do a lot of damage. Every year in Central Illinois where they were brought in---with no predators---to beautify the UofI campus they do in 20 or more car wiring harnesses.
I had a trapper get rid of those in my attic and then repaired all the ingress and egress points. They would scury along the gutters and chew another way in. The last time I dealt with them I called an exterminator who came out and sprayed the attic with "Essence of Fox" or something. It was odorless as far as I could tell but the little critters could not get out fast enough. Again I repaired all the in/out points. I never talked with new owners so do not know how long it lasted.
Don't waste your money on spray foam for the repairs. Do them right with new wood and even mesh or flashing if you have to. They will chew right the foam patches.
And D-Con or similar poisons may work but the things will bloat up and then rot in your attic. This can be unpleasant smelling and it kind of gets to you when you pull a ceiling tile and a dead, shriveled up one falls on your head or into your paint bucket.[/
I have always found that annoying