Why I need another arm

Last Wednesday when I was out the gym I overheard a nasty comment directed at me and it bothered me. I let it go because it was not worth getting into and it was the right thing to do. Let me set the stage and let your imagination run wild.
I was at the kid's gym at the end of their class when Sydney walks over to the bathroom and says she has to go. I follow her in to the bathroom as does Lior, Jordan, and another child. Did I mention I was also nursing Akiva on my right side (I am very right handed) without a sling? As I walk into the bathroom Lior starts whipping off her clothes and climbing onto the toilet just as this other child starts heading towards the toilet and sticks her hands into the bowl. Jordan is moving the stool towards the sink saying "hands hands" and Sydney is standing by the door saying she has to pee but needs her little potty. I am trying to keep Lior from peeing on this child while I am nursing the baby and crouched down on the floor. By the time the grandparent realizes his child is in the bathroom with me he is annoyed that I did not get his kids hands out of the toilet (I guess he expected me to grow another arm to help his kid). By the time I realize what is going on Lior has dropped her pants into a puddle on the floor (thank goodness they clean the bathroom right before the girls class) and has peed right out of the toilet onto her panties. Sydney has opened up the door some kind nanny has closed for me because the grandfather did not close the door when he ran out of the room and she has turned off the light. I get Lior dressed, while begging Sydney to turn back on the light, without putting her panties back on and ignore the wet spot on the back of her pant leg and hope nobody else notices it as well. She insists on washing her hands by herself which is usually fine but the bathroom door was open and that little girl was headed back in our direction. Jordan is still running loose in the bathroom carrying the stool around so she can play with the light. I finally get everyone back into the gym just in time for the closing song and try to get Sydney into the other bathroom so I can grab her little potty. By the time we get to that bathroom, it is occupied so I put Akiva back in his baby carrier which pisses him off because he was still nursing! I start instructing the kids to get shoes on and that is when I heard it "If that woman had better control of her kids she would not have gotten her hands in there".
EXCUSE ME???!!!! If I had better control? My kids were in the bathroom with me, peeing. It was not my kid with their hands in the toilet. Maybe if he had been watching his kid instead of chatting his child would not have followed mine into the bathroom. I said nothing. I said nothing because it was the right thing to do. I said nothing because my kids were with me and it was the right thing to do. I said nothing because Sydney still had to pee and it would have only made matters worse if she was standing in a puddle so I said nothing.