Just thought that I would share this along with some pictures of my babies.
Our 'big brother" yorkie, Charlie (5 months, 5.1 lbs) has seen the grass once or twice (we live in Pittsburgh and have had snow almost continuously since we got him in early December... Our little guy, Teddy, has never seen the grass. He was never outside until we brought him home.
Well, Charlie is the adventurous one, loves being outside, loves to dig holes, even brought us a "present" one day... a frozen mole!. Yuck...

Now that the snow is melting - he is thrilled. Although, since everything is so swampy, he is a little less enthusiastic about being outside.
Teddy is a little guy, he is 1.6lbs right now (14 weeks) and he hates it outside. He did not mind the snow so much, but now that everything is a melted, icy mess, he really dislikes being out there to potty.
He will go out and do it (if you stand there and insist), but you can just see that he wants to say "Mom, this is icky and mushy, I'm going back in and I will do it on the pee pad."
Anyone else have this problem? I was thinking about getting him little boots to help with this issue.