I'm on Day 10 of potty training my 21 mo old. She is totally capable, proving herself several times, but 80% of the time she chooses to pee on the floor. She calls me over when she pees, points at the spot and says, "Eww, pee, eww." I make her clean it up, tell her where to pee, etc. She simply refuses to use the potty. I have her gated in an area of the house and am using the potty timer. I put her in undies so she could feel the wetness. She just pees in them and takes them off, or takes them off to pee on the floor. What do you recommend?