1 Steve: {to the Charity Collector Guy, who's being dragged about by his leg by a croc} Don't worry, mate. 'E's harmless if you treat 'im with respect.
2 Steve: Let me just grab this handy king cobra and teach 'im some manners. {grabbing the snake by his tail}
3 Steve: {as the Charity Collector Guy is dragged around by the leg by the croc, Steve whips it with the snake} Crikey! That's enough friendly play! Let 'im go!
4 Charity Collector Guy: {as the croc lets go and runs away} Phew! Thanks, Steve!
4 Steve: No worries. Next time steer clear of me fish pond when walking up the path.

2012-08-17 Rerun commentary: Applying Holmes-ian deduction, one may ascertain that Steve's fish pond contains ocean fish. This is clear because they are in Australia, the crocodile attacked the Charity Collector Guy, and it is well known that only Australian saltwater crocodiles attack humans. Ergo, the fish pond must contain salt water and doubly ergo, being a fish pond it contains fish, therefore and ergo again, it contains ocean fish, because freshwater fish would die in a pond containing salt water.

Eat your heart out, Sherlock.

EDIT: A reader has pointed out that saltwater crocodiles happily inhabit freshwater regions such as river estuaries, swamps, and even lakes disconnected from the sea, and therefore the entire chain of deduction above is completely bogus.

I actually knew all of this, but deliberately overlooked it in an attempt to have something mildly interesting to say about this strip, thus ensuring with 100% probability that a reader would write to point out that saltwater crocodiles happily inhabit freshwater regions such as river estuaries, swamps, and even lakes disconnected from the sea, and therefore the entire chain of deduction above is completely bogus.

You win this time, Sherlock, but I'll be back.