Its gross but a pee bottle is what I'd do.

Really? Why not step outside and help water the plants? It is your backyard, after all.

	▲	swader999 an hour ago \| parent [-]
		That's what I do but I don't really have any neighbours in eyesight.

that feels pretty excessive

	▲	swader999 an hour ago \| parent [-]
		Not in terms of cost.