I never got to meet my Mother in Law or Father in Law, they had both passed away before I met my DH. The eldest Sister in law was the nearest that I had, and my Daughters have always thought of her as the nearest they had of a Grandma, as my own mother passed away when they were small toddlers, aged 7 months and 21 months respectively.
I knew my in-laws from my 1st Marriage, but seldom visited them, they were heavy smokers, their Lounge was a Nicotine stained Blue haze of smoke, and I suffer from Asthma, so needed to be in an environment with better quality Air.
They didn't visit us either, we were a smoke free zone, no ashtrays provided, and no smoking in the company of the children, if they really needed to smoke that much, they could take a walk up the garden to do.it!