Wow, such bile! On my last IAH-LGW flight the concierge greeted me and asked if I would like to shower at LGW upon arrival (yes). The staff at LGW was expecting me, and had even hand-monogrammed my towels with my initials.

The last part was a fib......but the rest was true. I guess there is a degree of inconsistency vis-à-vis the concierges.