No no, once you adopt something, it's not like you're bound to forever have it in your sig. I have no limit on how many you can have, but I'm not sure how many you can fit in your signature. If you did adopt an egg and got something you didn't like, I suppose you could always give it back to me and I could put it up for adoption to see if anyone else would like it.
And what's wrong with Spinda?? ^-^ Though I can see where you're coming from, my brother hates those pokemon. I'm kinda indifferent to them.
Oh, and lots of people shorten my username to LA. I don't mind, but it makes me think of the California city Los Angeles (and I actually have family there too). Does anyone actually know my real name?? Well, if anyone cares to know, it's Melissa. ^-^