>Well, being a Time Lord with his own TARDIS, it is not as difficult
>for Don to do as you make it to be. Now for us mere mortals....

Oh, that just means that the screwups aren't as messy. Well, unless the materialization goes wonky, then the sudden displacement of brain matter would cause Don's head to explode. But Don's too smooth for that to happen. ;)

The tricky part is making sure the implants hook up to the right bits of brain. If that screws up, the results could be as bad as or worse than a Cyclops humor install.

--
Mr. Fnord, author of the bestselling book Trepanation: How To Give Your Brain A Sunroof