Arduino newb question

I'm doing my first project with Arduino, and I'm a programmer which doesn't know anything about electronics (so sorry if the question is lame).

Is it going to damage the Arduino if I connect the analog ins to the gnd directly without resistors?
I'm doing a trigger system and the short circuiting works great, I was just wondering if it would damage the Arduino hardware?

Thanks in advance

No, you won't cause any damage.

Cheers, thank you for that!