Because I don't wait around on DP hand and foot like a 1950s housewife, FIL (69) thinks I'm lazy and a bad girlfriend. Whenever I'm there (this weekend for example) he will make little comments now and then. This weekend DP wanted to clean his walking boots in the garden, and FIL said 'oh maybe Daisypowers can do that for you' and gestured to me. Another time DP said he was going to make himself a sandwich after playing tennis and FIL said 'Daisypowers can do that for you, have a rest.' At the time I'd just sat down in the garden with a cup of tea to read my book after doing the food shop for everyone and deheading MIL's rose bushes because she's got a bad shoulder.
Me and DP are 35, both working full time, no kids, and do an equal share of everything domestically at home. DP perfectly capable of making a sandwich for himself. Both MIL and FIL quite old fashioned and MIL does absolutely everything for FIL - all the cooking, cleaning, puts out clothes for him to wear every morning, packs his suitcase for him when he goes on holiday etc. Should I say something? Really annoys me.