Yes, I think we are all stark raving mad!
I have found second year quite frustrating so far, because we have had no animal contact WHATSOEVER, and sometimes it's hard to remember why it is that you bother learning all the anatomy/physiology, etc that they throw at you.
But, as leggielass said, we may moan and whinge but it's what we've worked our arses off to be able to do and it's what we live for.
If you've just started, or you're not quite there yet, don't listen to us, sometimes all the work just blocks out the glowing vision of the end goal for a while!