Fidelity Investments is paying big bucks ($3.75 million) in fines for, among other things, playing with “little people.” Thirteen Fido employees accepted pricey presents from clients, including concert and Super Bowl tickets — and, of course, a crazy bachelor party with live entertainment. A 2003 bash featured a little person dressed in a superhero outfit allegedly tossed around by partygoers. Up, up and away …