A colleague keeps making remarks about me working part time. It's very subtle criticism, like me not knowing certain things because I'm only in part time, or saying everyone else is in every day (I'm not the only part timer in the company) down to the "jokey" what do you do all day and suggestions that I'm lazy if I haven't managed to do something at home that week. It's been going on on ages now and I've started to realise that it's every day that I go in there's at least one comment or more.
Does anyone else working part time have colleagues who do this? How do you respond? I can't go to HR - she is HR! And also good friends with my line manager. DH says I should play on it and go on about all the reading, watching tv and generally laying about I do on my days at home, but I don't know if this will just aggravate things.