Standard BB vs. SB?

[Analyst]

There aren't many hard and fast rules in poker, but one that seems to work pretty well is the following. I'm in the big blind and it's folded to the small blind who just completes; assume that I don't have a hand good enough to raise with. If SB checks the flop, I will bet regardless of my hand (unless the SB is tricky enough to play a big hand this way - not too many players, it seems) and the SB folds the overwhelming majority of the time. Standard?