Entertainment | WorkI don’t have the next billion-dollar invention in my pocket – not yet, anyway. But if I did, my weekly consumption of ABCs “Shark Tank” will have prepped me well for that pitch with a hotshot investor. The show where small-business owners and inventors go before a group of self-made moguls seeking moolah is more than just great entertainment. Will the Sharks praise or pooh-pooh the idea? Will they get five doses of rejection? (“I’m out!”) What snarky comment will the …