An excessively boring subject where the goal is to torture and confuse poor unsuspecting students. Rakes, shovels and unamed weapons are usually used.
(During a potentially deadly 45minute lesson of Agricultural Science)
Mr Hatt: "Hey Bob can you grab that shovel over there for me?"
Bob: "Why sure!"
(skips across ground and falls through pothole into a pile of dung)
Mr Hatt: "Forgot to mention that, Least its a nice colour, that theres the sign of healthy crap".
(this is, in essence, an example of how useful the information you are taught in Ag science is)