Bertie first: He is willful, stubborn, hates being told off, bitey (still, but he's started to lose his baby teeth, so hopefully he'll be less bitey soon), and a right little aggravator. However, he's lovely when he's asleep!
I took him down to the beach earlier, and here are some photos that document his mischieviousness:
Here he is looking guilty after causing a mud slide with an enormous fart - you can see how the force of the trump has blown all those reeds over behind him.
(Really though, this cliff slump happened as we were walking by, although Bertie was oblivious. A larger version from 2019 can be seen here.)