Give me the ball back

Ahh, after days of not going out, at last, back to the beach.

We're looking after a friend's dog and Henry is getting used to sharing (nearly). Our friends are in Japan where, apparently, a lot of dogs are dressed in clothes and pushed around in prams! I'd like to see anyone trying to keep these two in a pram. You wouldn't really consider it, would you? Why do people think that small dogs don't need to exercise and have fun?