Cool idea for a thread but I gotta tell you, I have a LOT of pictures of Spike:-).
I took this last Saturday with my "new" Pentax SMC K-200/4. I really shouldn't post it because I missed the focus, badly. I was focused on his head before he turned to me and didn't adjust and I may have been a bit off even then. This would be one of my favorites of him if I had nailed it. But I'm posting it mainly to show what the lens is capable of. I love it's bokeh and it is pretty sharp, in it's focal plane:-). I really like this lens, I just need to shoot with it more and get used to it.