Mono Monday - entrances and exits

Here is my third outing on MonoMonday: thank you again to Paladian for again hosting this weekly challenge.
Of the several entrances and exits to our house, this is (in the eyes of our cats) certainly the most important. Here Lilly has obliged me encouraged by lots of tasty meaty stick treats by demonstrating the technique for entering through the cat flap - thank you Lilly!