Bob wakes up one morning, and he needs to grab a pair of socks for work. In his sock drawer, he has 5 pairs of blue socks, 3 pairs of red socks, and 4 pairs of white socks (Bob is American and very patriotic). If Bob is logical, capable, and an observant person, what is the minimum amount of socks he needs to grab before being sure he has a pair of white socks for work?
The answer will (hopefully) not be the first thing that comes to mind. Also, this is a riddle, so inventive solutions are common and entertaining. If nobody has submitted the answer I was expecting in the next couple days, I will accept the answer I think is most creative.