This will prevent Jeff from sending you messages, friend request or from viewing your profile. They will not be notified. Comments on discussion boards from them will be hidden by default.
“How simple and frugal a thing is happiness: a glass of wine, a roast chestnut, a wretched little brazier, the sound of the sea. . . . All that is required to feel that here and now is happiness is a simple, frugal heart.”
―
Nikos Kazantzakis