Just that really. An estate agent came to value my house today. The first thing he did was introduce himself and we shook hands. The second thing, he stepped inside and looked around and asked "shall I take my shoes off?".
I would never dream of not taking my shoes off on entering someone's house, except maybe my MILs because she is a filthy mare, it's automatic.
Is this question code for, "I think your house is dirty"? Straight up, I am not the house proud lady that my own mother was, but man, this place is clean and tidy. We are part hard-wood floor and part carpet (which could be seen from where estate agent was standing).