All the bowls in a fours game have been played and the thirds agree that a measure will be necessary to determine the shot. One third wants to delay measuring as his nearest bowl is leaning towards the jack and may fall. Is this permitted?
Yes. Either team may delay the count of the shots for 30 seconds after the last bowl comes to rest if they so desire. No bowl which is likely to fall must be secured during that period. Laws 23.1 & 23.2
At the conclusion of an end, a bowl required to be measured is resting on another bowl which prevents its measurement. What shall be done to allow the result to be determined?
The best available means must be taken to secure its position, and then the other bowl may be removed. Law 23.6.2