Similarly 'why are you doing X the hard way and Y the easy way? If you were *really* disabled, you should be taking the easy option for both'

(This is my inner paranoia talking. I haven't been called on the fact that some days I used the accessible toilets but not the lift, and I really don't want to have to either refuse to answer or talk about my complex mix of issues. But we did have the accessible toilet locked with a 'people have been abusing this privilege' note on it for a week, so there is enough justification for my paranoia that I have a little practiced script if I get called on using the accessible toilet, which I only do intermittently. On,y partly because it is on the other side of the building).