Allegro Rhythmic Gymnastics

I don't do gymnastics but my daughter do karate class in Lefevre community stadium. Today I went with my daughter for her class and my 20 month old son suddenly threw a tennis ball towords the gymnastics class (accidently) as he was playing other side. I went quickly to grab the ball try not to distract them but(the teacher don't want to mention her name) ran to me and said very rudely I am taking a class and your are playing here. She didn't even let me say anything just yelling and telling me this. I said I am sorry but my son suddenly threw the ball, I just couldn't stop it. The ball wasn't even near their practice mat. I said to that you don't need to be that rude as it is not like we intentionally did it. And off course the receptionist wasn't saying anything just sitting i