Oops

This is our new catflap. The old one broke as it was permanently being wedged open as our beloved Peanut-Face was too lazy to push it open herself.
I was determined that this wouldn't be the case with the new one.
I've made it my mission this week to teach Peanut-Head how to use it.
While trying to force her through, I encountered some resistance. I assumed she was pushing back with her front paws so I changed my grip.
Now I was holding her so she couldn't push back, still I encountered resistance.
Not to be outdone by a catflap I pushed harder, to the point where Peanut hissed and growled at me. I let her go thinking something was wrong with the catflap.
On inspection it appeared that I hadn't unlocked it and for the last minute I had been ramming my cats skull into a locked flap.
She seems to be avoiding me at the moment.