Funny you should mention plunking. I grew up plunking the Chehalis as a kid, where a 1/2 gal of BV was a staple at every plunking shack. Guys just left the bottle in the shack. I've never personally seen anyone too "burned out to fish", that being because one time I was the one being literally carried out through the field unable to walk, let alone fish...ah, the good 'ol days.