You should really read the document:
My favorite highlights are:
Lifetime membership after level 2. (They have levels.)
Section 2: Brotherhood for Life
Any person that has completed the second degree of initiation for the Fraternity becomes a brother for life, except that he may be expelled for good cause as provided for in Section 6 of this Article V (note: bold emphasis mine)
If cereal is not a code word for something else, then this is beyond weird or we are being larked.
v. Immediately after reciting the Fraternity Creed, the supervising brother shall instruct to probationer to name five breakfast cereals. At that time, the five brothers surrounding the probationer shall begin punching the probationer only in the arms and torso area of his body until such a time as he recites the names of five breakfast cereals. The supervising brother shall count the cereals aloud and the punching shall immediately cease once either (a) the fifth breakfast cereal is reached; or (b) the probationer indicates through words or actions that he is unable to continue and wishes to withdraw from the Fraternity. … (note: bold emphasis mine)