Who isn't fascinated by live lobsters at the supermarket? Even I can't resist tapping on the glass of the grocery store tank to say hello to the lobsters.
If you think more about it, you might buy them and take them home to eat for dinner.
If you think too much about it, you might feel sorry for the lobsters, buy them, and take them home to be your pets.
If you think too much about it and have too much to drink and you're the Terminator 2 child star turned troubled C-lister, you might get arrested for trying to liberate the lobsters.