i am disappoint (11. 569)

The always interesting Language Log introduces us to a class of typos with two-subsets that we can find very relatable and gets the onus of the blame when conducting a bit of post-publication proofreading: completion errors, when typing or writing (there is both a motor-mechanical and muscle inertia in effect) starting out with one intention and an intrusive ending inserts itself, and capture errors, an action slip when a reflex behaviour creates an unwanted parallelism. What’s a sticky key you’re vexed by? Surely beyond spoonerisms such slippage happens in speech with frequency and I wonder how too such intrusions are compounded—or not—by auto-complete.