How would you handle this problem with inlaws?
My in-laws invited us to their place last weekend. Whenever we go, we have to spend the night because they live 3 hours away. We also bring our dogs with us every time we go.
When we got there I sat down on the couch and my MIL said, "Oh don't sit there, you'll get fleas." Uh...? FIL chimes in, "Yes, I think they're immune to Frontline." They tell us this AFTER we get there with the dogs and they know we use Frontline to try to prevent fleas. Needless to say, both dogs became infested during the course of the weekend and now our house is infested. I had to invest in very expensive flea medication because the fleas were immune to both Frontline and Advantage. Now I'm stuck vacuuming the house every single day until I feel like everything is under control.
This is not the first time they've had fleas when we go there but usually I get it taken care of right away. This is the first time we've actually gotten infested. My husband thinks the whole thing is funny but I am royally PO'd.