I have a nine-year old Yellow Lab who could spit out a pill an hour after I gave it.
Since putting the pill in a dab of butter on the tip of a butter knife, and placing it behind her top teeth in the front, she hasn’t missed a dose.
YMMV.
Whoa! Your lab is sneaky.
The butter dab has always worked with my dogs. Raw beef liver chunk with a slit works as well, but messier for me.