I try to keep up with each kid's needs, but sometimes it's too much and I over-react--ever happened to you?

HS Freshman DS tells me yesterday that 9th graders will take the EXPLORE test in a week and he wishes he didn't have to take it (He took it 3 yrs ago and scored well, plus has since done the ACT/SAT, so he sees this as yet another step backwards). I email his counselor to see if he can get out of it, but wish I hadn't. DH later said, "We paid money for him to take that test once, and now he gets to do it for free--why not?" I know the counselor is going to think I'm insane (not from this alone ;)). I'm embarrassed that I knee-jerk responded to kid's request, without thinking about it more. Oh well.