box: as in short and long at same time=make no money. place to keep certificates (short against the box). common visual, easy to understand.
Tuna... I'm an ex fisherman.. a crazy fish that i've spent most of my life chasing thru the North and South Pacific oceans.
My first name is Don and I play golf for money. I like my opponents to have a sense of overconfidence. At one time I was a duffer at this game too. I still am compared to some, but I think they are getting fewer as time goes by. Unfortunately I am unable to lure the market into a state of overconfidence by my choice of nickname.
One time I worked at a company where the idiot who setup my email misread the form where I wrote down my username choice. He though the final d was the number 9 and actually thought I wanted to be dmacdonal9 and then refused to change it afterwards. My coworkers got great enjoyment from listening to me trying to tell people my email address over the phone, and it became a nickname. But it's nearly never taken when I try to sign up for things, and it is easily remembered.