For reasons I'm unable to comprehend at the moment, I happen to surf for good domain names when I'm idle and have a connection. At one point, Jamie commented that my domain nonf.at (which I haven't done anything with yet) is one of the shortest personal domains he knows of. I commented that I have kh4.us, which is my shortest domain name, but, well, this site is really the only site I'm particularly good at updating regularly. I also own km4.us, for Kris, but he does nothing with that one (nor with krm4.org, which is also his).
Yet, even with a slew of unused domains, I still surf, looking at various domains. Today, I tried to find another short one, one that I could use with my name. mkh.us, the most obvious one, was taken. So was krm.us for Kris. Both had squatter pages on them "This domain name is for sale!".
Okay, so I kept looking.
My first thought was "Good lord!" followed by a mental note to put "coming soon!" notices on all the extra domains I have that aren't being used.
I guess Kris and I will stick to our k?4.us domains as our short, short, shortest domains.