2 feet tall

You know how some people can just say something or just look at you a certain way and you feel two feet tall? Or maybe it's because they don't look at you or don't speak to you that as a result you feel like hiding your head in the sand. A couple of people come to mind that induce these feelings in me. I dare not write their names for fear that I will endure sudden spontaneous combustion. I must find the antidote and quick!