Why so serious, guard?

Today I was helping people out in Riften, and on my way to Wylandriah I met a guard. As usual I am giving those I walk by a little smile and a nod, but it seems that the guard was in a bad mood.

• So you can cast a few spells- Am i supposed to be impressed? He utters.

Now I know that I mostly am famous for my quick daggers, my aim with the bow, and the brutal damage I do with a greatsword but I actually am proud of my magic, as I'm not really a wizard.

I thought that hey, I should conjure something to impress him or at least make him surprised! So I did, I conjured a Flame Astronach that began to dance around us. Proudly I gave the guard a look but he just folded his arms and replied:

• Go cast your fancy magic somewhere else.

Yes, I know that you guards can't explore and be an adventurer like me due to your knee damage, but seriously, I am trying to make the world a better place. Why acting like such mudcrab stools? :/