Back in the mid 60s, when 360 had just formed, we were a tad short of airframes so we did some one-week detachments to RRE at Pershore to fly their Canberras. All civvy staffed, so if you were not on the ground by 1630 go somewhere else, H&S rules (or TU intransigence) meant that the civvies would not remove rudder locks when the engines were running, so no flying if the wind was > 25kts. Best of all there was provision in every sortie to drop below 10,000 ft, to enjoy the sarnies and soup thoughtfully provided by the management. Happy days.