Yeah you never know what's going to happen when you're away from the computer. But if I had only 30 minutes a day to watch my stocks, it would be the 10 minutes on either side of the open, plus the 10 minutes into the close.
It's really too bad you missed UVE. You've loved the stock in the past and would have been all over it yesterday. With your aggressive style, probably would have bought a $200K+ position. And made a quick $40K in a day. That was one expensive dental appointment!