Nicky did this after me being positive he had gotten the "outside for potty" instructions. I narrowed down most of the reasons I think this happened...Some times it was something that scared him in the backyard, like the crazy winds we get up here (once it turn a large glass table upside down). Other times it was just too unbelievably cold outside, or he was sick.
One time Nicky did the same your baby did; he looked at me, lifted his leg and did it right there. I said 'no, baby, no' and I carried him outside while he continued to wee-wee and leaving a trail behind.
I realized that when he goes #2 outside, I make a party and I wasn't doing the same thing when he went #1. So I started to do an even bigger party when he went wee-wee as well. Now he goes out for potty even in the freezing rain

Poor baby, he shakes when he returns cold and wet

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I used the spray bottle on a neighbor's large doggie, once. He kept escaping the neighbor's house, coming over and wee-weeing on my two little ones in the face (Nini caught an eye infection). My other neighbor yelled at me not to do that, but I was already feeling like a monster after I done it...I don't know why

Point is, the water spray didn't work on my neighbor's doggie, he still escapes at least 3x a month and wee-wees on my babies. And praise did work wonders on Nicky
I hope you find the way
