Let's break that down with some assumptions...
8 hours of Blackjack, with say six shoes per hour, with 75% penetration...
312 cards per shoe times 75% - or 234 cards in play minimum, at 2.7 cards per hand times 5 positions played (4 players plus a dealer) or about 17 to 18 hands per shoe for each player.
17.5 times 6 shoes per hour times 8 hours a day times 4 days or about 3360 hands played for the weekend.
per www.bjstats.com/bjsc.asp for a 6 deck 75% pen game, a true of +12 occured in their simulation 10,439 out of 219,912,027 hands, or .00005 out of 1.0
meanwhile, you had 2 out of 3360 hands, or .0006 out of 1.0
conclusion...MAN YOU WERE HOT THAT WEEKEND!!! ;-)