That realization may have occurred to him for the first time about 2 seconds before he expired. Up until that point, I think it was all fun and games for the little thug.
I don't. I think it was serious. Trayvon was already in TROUBLE, having been kicked out of his FAMILY HOME.
He was living at his father's girlfriend's RENTAL CONDO.
ONE MORE INCIDENT, and his father would likely had to have thrown him out. Where would Trayvon go then ? He might have to get a job and pay for his own living quarters. His solution? Violence.