This was a new one for me. Notice the single glass block up high on the wall under the wire tray? It apparently is critical to the fire alarm system in this retail store:
******* **** ***** ***** ** ** important, **** *** **** ***** ** on *** **********'* ****/*****/****** ************ *********** schedule *** *** *******... *** **** block *** ******* ** ** **** the ************ ******.
*** ******* ** **** ** ****/*** it ** *****?
** *** **** *** ******** * smoke **** ******** ******* *** **** glass... **, *'** ***** ** ****** for ****** ****** ************ ******* *** building?