No sweat, everyone. Thanks. S2 will be fine. While potty training for S2 is a goal of ours this year, I know it will have to be on his schedule, not ours. His preschool encourages it as a practice. While S2's shown reluctance in the past, I know that he now has the ability to control himself better -- he's ready physiologically, and just needs a little coaxing and encouragement. So I'm not worried.