Pond note

Which can for your house — 50, 200, or both

The cans differ in one dimension only — how many short bursts they hold — so choosing is really a question about where your dog commits his crimes.

If the trouble happens on the move — jumping on strangers, lunging at bikes, arguing with other dogs — the 50 mL is your size. It disappears into a jacket pocket, weighs nothing worth mentioning, and holds around fifty bursts, which at the proper rate of one-per-incident is a season's worth of diplomacy. Add the holster and it rides your belt like it was always part of the outfit, drawn in the half-second between witnessing and acting that the W.A.G. ritual actually demands.

If the trouble is domestic — fence-line barking, doorbell theater, counter patrol — the 200 mL earns the kitchen shelf. Same hiss, four times the patience; it parks by the yard door and outlasts an entire summer of delivery drivers.

Households with both kinds of criminal do what garrisons have always done: the two-can pack stations the 200 at home base and sends the 50 out on patrol. It is also the arrangement that survives the classic failure mode — the single can that is always in the other room when the barking starts.

Whichever you choose, the arithmetic favors restraint. Used as punctuation rather than paragraph, even the little can tends to retire undefeated — half-full, on its shelf, ruling the house by reputation alone.