BEPNot necessarily.PWC do fire alarm tests only on a Tuesday in Manchester but if you are in London its 9.00am on Monday.During cold spells in Scotland KPMG send a man out to measure icicles on the building for likelihood of them breaking off and falling - known as the KPMG Test-Icicle process EY do tests once a month on their VP's - they get all their overweight Partners on the same floor and see if it holds - load balancing I guessDon't even start me on what performance testing means in ACN - but not big 4.DC