Potty Training... the part i didn't expect

So I don't know if Thursday is the best day to blog this, but I have to talk about it.

My potty trained son, Oliver (age 2), has recently taken to peeing in things. Recently as in TODAY. i am a single mom raising him pretty much on my own. He lives with me full time and sees his dad about once a month, so I am left to teach him how to pee like a man.

My SO is a huge help with Oliver, but not he doesn't really help Oliver with anything bathroom related and that is ok with me. It isn't his place anyway and I am just grateful for all the help I get from him in every other child-rearing aspect.

Anyhow, this morning when I got up to pick up my cat from the vet, I noticed two tall glass cups of juice on his table. Actually, the glasses were tall but each had about 2 inches of peachy-yellow juice in them. I had to rush out so I didn't pay them much attention. I just helped Oliver, who had woke up before me (as usual), get dressed and we rushed out the door.

Later on, after we were home, I dozed off on the couch while Oliver watched cartoons. At Some point he woke me up with a Sundrop bottle, telling me he had peed in it. I told him that was gross and to please use the potty (he uses a "grown-up" toilet) next time and to throw the bottle away. A little bit later, I hear the sound of liquid in the kitchen. Of pouring. I walked in to find him peeing in his Cars cup. EW.

I told him NOT to pee in his cups, please. At this point I remember and grab the two glasses, and I sniff. GROSS. What I had thought was the white cranberry/peach OceanSpray juice was pee. I dumped all the cups in the sink and fussed a bit.

I don't know what to do... I know that there are urinal-style training potties available, but I don't really want to buy one when he could just use a stool or something to stand and pee. But he won't stand on a stool and pee in the toilet. He had been doing FINE sitting and peeing, but the last few days I've been out and about with him a lot and I've actually taken him to the men's room urinals available and let him pee standing. Apparently, to a boy, peeing while standing is AWESOME. I guess it's just a new, different experience for him since he's used to sitting.

I don't know how to handle this. I grew up with 4 sisters. Oliver is my first boy. He is too short to pee in the toilet without standing on a stool, but he doesn't seem to want to stand on one. Maybe he doesn't feel secure doing it that way.

Anyway, this is a whole new experience for me.. and despite the gross dirty dishes I'm getting from it, I actually think it's quite funny.