Thank God for that training I received before I was allowed to bring S2 home from the NICU!
Tonight J was doing his semi-regular routine of screaming bloody murder for no obvious reason, and none of the usual tricks were working. I was attempting (quite pitifully) to eat dinner at the time, as I hadn't eaten all day, and gave him a very small piece of the crust of my sandwich bread. This piece was MAYBE 1/8" square.
Next thing I know, he's screaming silently, eyes bulging, flailing with all his might. I quickly laid him belly down on my lap, with his face between my knees, and gave him three strong, swift thumps with the heel of my hand between his shoulder blades. He was still flailing, and not making any noise, so I repeated it twice more, and on the third attempt the piece of bread came flying out.
Then of course, he screamed to beat the band. He was so terrified, and spent the next 30 minutes clinging to me for dear life. I finally calmed him down enough to nurse, and he fell deeply asleep within two minutes.
He's now sleeping peacefully in his bed, no worse for wear, and I can't stop shaking. B isn't here tonight, and I'm alone with S2 and J. Choking is my biggest fear. It's part of the reason that we decided to mostly let the kids self-feed, because it greatly reduces the risk of choking. We've never cut their food in to teeny tiny bites, opting instead to give them something big enough to really grab hold of it, and nibble little pieces off at a time. And it's worked marvelously.
Figures that the one time I go against that and give him an "appropriate" sized bite, he chokes.
Again, thank God I was able to recall those lessons quickly and effectively.