January 2022
SOME EQUIPMENT RULES
There is nothing in the Rules of Golf that would prohibit a player borrowing an umbrella from someone else on the course be it another player, official, or spectator. The Rules of Golf even allow you to use an umbrella to protect yourself from the elements while making a stroke but it must be the player holding the umbrella so it only works when tapping in a putt. Under the Rules of Golf you can borrow anything you want from others apart from CLUBS. 
A player is limited to those clubs they have started with, or added when allowed, and must not make a stroke with a club borrowed from someone else playing on the course.
Exception: In Foursomes or Four-ball players can share clubs as long as their total number of clubs does not exceed 14.
Since 2019 there has been no penalty if a ball accidentally hits or is deflected or stopped by any player, partner, caddie or equipment but you have to play the ball as it lies. (Rule 11.1).
If a ball is deliberately deflected or stopped by a player the General Penalty applies – Loss of Hole in Match Play and 2 Strokes penalty in stroke play. (Rule 11.2). On the Putting Green replace the ball and play again from there. Anywhere else on the course estimate where the ball would have come to rest, put a marker down as a reference point, drop a ball within a club length of the reference point and play from there.
