1. Eat guinea pig poo (Sparky).

2. Eat horse and cow poo (Willis).

3. Sniff each other’s bottoms (Sparky and Willis).

4. Lick a bitch dog’s wee off leaves and fence posts (Willis).

5. Lift their back leg over the head of the licking dog, and attempt to have another wee (Sparky).

They love each other dearly, obviously.