Nuked by my toddler today

I have 8 kids. One day my brother in law comes storming in my house asking me if I knew what jamokes my kids were. Apparently my 7 yr & 6 yr old decided it would be faster to ride their bikes on the freeway. Now my children have been told never to do that. But...I can only hope & pray that something I say sticks in their heads. These same two wonderful children had been taken to watch their older sister play volleyball. They went to get a drink & the police came asking who these two children belong to. Apparently they dialed 911. When asked why, they said because the sign said it was a free call. Now looking at my grandchildren & what they can do with technology...we will never be truly safe.