Who peed in YOUR cheerios today?
Have you heard this expression? You're in a bad mood,and someone asks you "geez, who peed in your cheerios this morning?"...Well I was having a good day, nope, pretty great. I decided (hindsight: do not share good things with brother) to call Steven and tell him about my great day.
He is the pisser.
Nothing more to say, Steven is the official Cheerio Pisser.