We have one at the bottom of our (very steep) stairs, one at the top and one in the doorway of DS1's room. Mainly because he is a loon and if we can't safely contain him he will climb anything.
Anyway, last night, he appeared at the top of the stairs despite (we thought) him being safely stuck downstairs. Then this morning, he woke up at 6am, chunnered to himself for 20 mins, and the next thing we know he's running into our room, shouting "I climbed out of the stairgate - I'm hungry want 3-4-5 weetabix."
Whilst I was half amused, half quite impressed I am now filled with dread; DS2 is poorly and not sleeping well the last couple of nights. If we now have to deal with DS1 announcing himself every 4 minutes I might crack up.
Is it fairly common for toddlers to lose respect for stairgates at this age? What do you do if you rely on them to keep them safely contained?