It's obviously going to blow any second. You'll have wrap your carboy in a towel, leave it out front of your house and PM me your address so I can drive down there to dispose of it.
Wait. What I mean is, if you're making sparkling cider you'll probably want to wait until the bubbling is at least one bubble minute or longer. I made some sparkling cider bottled with priming sugar at 3 weeks in the fermenter, and while I didn't have bombs, I did have some REALLY carbonated cider. I'd wait at least another week or two, difficult as that will be.