I wonder if MOM is going to bring up the purple drank issue....and the FACT that watermelon tea and skittles could have been intended for a drug concoction made by TM. Not only that, but he could well have been intending to introduce his little half-brother to the mix.
http://thekansascitian.blogspot.com/2012/05/more-than-bag-of-skittles-trayvon.html
Chad isn't Trayvon's half brother. More likely Trayvon would have shared his 'purple drank' with Brandy Green's sister, who was back at the townhouse babysitting Chad.