Sounds like you need to get them out for some exercise. Can you either take them to a playcentre or something like that or let them run wild in the muddy puddles?

I agree with N2L - other people's kids always seem to behave better than our own. Mine are definately little ferals - but only for me

I think because they are more comfortable at home they press the boundaries more freely ITMS. Drives us mums mad I know.