DH just came back from taking DS2 on a long walk in the Maclaren to the supermarket to pick up a few things. He was doing a favour for me, actually (as I'm the driver in the family) as I was tired and not really up to a trip to the supermarket this morning. Plus DS2 loves going on long walks (as long as he doesn't actually have to walk the whole way LOL).
DH was fuming. Said that 3 different times he had people making comments about DS2 (4yo) being in a pushchair. He ignored the first 2, but the third one, he went off at them and said "It's a special needs pushchair - is that a PROBLEM for you?!?!" Apparently that woman turned bright red, looked down, and scurried off pretty quickly at that.
I will never understand why people feel the need to comment, tut, make faces, point, laugh, whatever.