Knitting whilst watching a movie with subtitles*, even plain garter stitch, is never a good idea. I managed to knit 8 or 9 rows, dropped a stitch somewhere, messed it up trying to fix it, ripped back 8 or 9 rows to get it all back on the needles.
*Parasite-it deserved the Oscar.
My son said the Oscar was well-deserved, too.
I always feel exponentially more stupid making an error in garter than any other time. It happens to us all, though, huh?
How true!