I find I have no time to think when I'm pairing. I tend to build experimental abstractions and chop and change them quickly to best fit with the problem, and vocalising what I'm trying to do slows me down 10x - not just is it tedious to explain the bigger picture I have in my mind about the change I'm performing, but while vocalising I don't have time to think further.

And when I'm not at the keyboard, the slowness of my pair and the inelegance of their code - it's hard to formulate the right nudges or wait for their cogs to spin and realise the issues with their approach.

I'd love to work with better programmers, but they're hard to find.