A Master Farmer is a farmer who cannot be attacked and can only be acted on by pickpocketing. It takes level 38 Thieving to pickpocket them. If the theft is successful, then the player will receive 43 Thieving experience and a random seed or seeds, excluding tree and fruit tree seeds. If the theft attempt fails, then the player is stunned for three seconds and takes damage depending on current life points, from 30 up to 250 life points.
Martin the Master Gardener - Found in Draynor. He wears the Farmingskillcape, and can be pickpocketed. He requires a right-click to pickpocket, so it is advised to pick the other Master Farmer near him, however Martin can be trapped in the pig pen so is optional if you don't want to follow the Master Farmers around. He is also the starting point of A Fairy Tale Part Iquest.
The Master Farmer located in North East Ardougne can be looted twice in one attempt, by trapping him in the farmer trade shop and cornering him and clicking your cursor consecutively. After about 5–6 minutes of this, he will respawn outside of the shop. Getting him into the trade shop is extremely hard doing it solo, but can be easily done with 2-3 people.