If your toddler crawls through it and drowns in an adjacent bog. You can sue
the manufacturer (or installer) of the doggie door for not warning you.

"More than a hundred children have died or been seriously injured in the
last decade after squeezing through tiny pet doors and getting into swimming
pools or other dangerous places, new research has found. "

http://www.abcnews.go.com/Blotter/Am...7561260&page=1