Fool's hole; check out my post 29/1/05.
Thunderstorm Warnings issued at BRS aren't just for the benefit of aircrew, they are for also us on the ground here, over the years I have seen numerous things struck here by lightning, GPU'S Buildings, even the tower last year, along with Nav aidsl & aircraft.
I have been involved in some very near misses myself, next time you are trundling down 27/09 & notice the patchwork of asphalt, some if not most of this repair work was nessasary due to surface damage caused by lightning strikes
The risk here has been assessed in relation to Thunderstorm activity & it is deemed nessasary to operate a Shut down on the aprons, when there is thunderstorm activity in the vicinty.
Tea up!!