I can change a rear flat, because fate messes with me by causing my rear tire to flat way more often than my front tire.

I hate it because it's messier. I always get grease on my hands putting the chain back on the cog. Maybe it's possible to do this without touching the chain, but I never seem to be able to do it.

I learned how to remove/reinstall a rear tire from the LBS guy who sold me my road bike. I asked him how to do it because I needed to remove both tires in order to fit my bike in the trunk of my car. I think it's intimidating because it seems hard to put everything back together properly when you're done.

And now that I've answered this email, I have jinxed myself and will have to change a flat tire soon....