House no longer secure

All this time we've been able to use kiddie gates to keep the kids out of the areas of the house where they could get into trouble. Up until now it's been no problem because my kids aren't really climbers. Didn't climb out of their cribs, don't generally climb on furniture, and never
over the gates. Today I couldn't figure out how Sam got out of the play area, so I asked her to come back, so I could see how she did it. She simply threw one leg over the top of the gate and
rolled on over like some people clear the boards in hockey. So much for security.