...that certain people view your healthy eating as a challenge to them to try and break you down? "What's one doughnut going to hurt", "oh your going to the gym tonight anyhow", "who will know?", "it's his/her Birthday, you HAVE to eat cake", ect.
Here is my most recent example.
I have a new Manager and the other day our company had an employee appreciation and the reward was pizza and ice cream. I had just heated up my lunch when I saw my Manager walking down the hallway with her pizza and she asked if I was going to have any pizza or ice cream. I said "no, I think I'll pass" and she proceeded to comment about how I could put aside being healthy for one day. It was a very awkward situation because she followed it up with "oh I guess I should try to be healthy once in awhile too". I wasn't trying to make her feel bad about her own decisions, she did that on her own. And this isn't the first time she's done this either.