Mr Pumpy advises when approaching strange semi-domesticated animals to creep quietly up from the rear and give them a quick blast of air from your pump.
If they react in a friendly manner then they can now be approached from the front. If they react in a weird or confusing manner, run back to the bike and take off quickly. This applies to dogs, ducks, goats, monkeys and naturally, cows.
Check out the road: sealed, not too much traffic, nice scenery and only a small rise or two.