I'm stuck in the healer's hut in the Shady Sands - I needed healing, and it took a long time to heal. Now it's night, the healer wants me out so he can sleep :) and a kid is standing in the door, blocking it. Is there any way (excepting combat, of course) to make that annoying little bugger let me pass ?

you could try waiting a couple hours with your pip boy.

try rightclicking the kid, there should be an option to move person. i know it was in 2nd fallout, not sure if it's true for 1st.

Even with Fallout 2, I think pushing only works for NPCs in your party. In Fallout 1, I think the only thing you can do is wait and hope.

Thanks, I ended up waiting until morning :)

You can not push everyone in Fallout 2, but the most people.
In Fallout 1 this is not possible.