A banana in your pants???

So we are working on potty training Liam. The first full day was difficult with him screaming and yelling and refusing to sit on the toilet. Then yesterday Joe got him on the toilet just in time for him to go potty and that seemed to help him. The first few times going in the toilet were messy cause he was already going, but then last night and this morning he went potty with no mess. Unfortunately pooping hasn't been successful. This morning I took some things out to the garage and as I came back in I hear Joe saying, "You have a banana in your pants?". Then I look at Liam who tells me he has a banana in his pants. When I checked there was no banana, of course, just poop! Well at least he is doing okay with the potty, I am sure he'll figure out the poop thing soon, right?