Landout at Class C or D tower-controlled airport?

Hi all.

I've done thousands of landings in all kinds of airplanes at tower-controlled airports (now called Class B, C and D), but I've never seen a glider land at one.

Does ATC frown upon this (unless one declares an emergency in which case you have a new problem) or to they take this in stride and accommodate us gliders as an unusual but accepted part of their workday?

Faced with the choice of this or a field, what would insurance say if I broke the glider landing in the field? Might insurance deny my claim since there was a perfectly good tower-controlled airport within gliding distance?

If this is an accepted practice at tower-controlled fields, how do you get the glider off the taxiway? Do they have an FBO come out and tow you off?

Ben