This memo is *supposedly* from an unnamed
computer company. It went to all field engineers about a computer peripheral problem. The
author of this memo was quite serious.
Mouse balls are now available as FRU (Field
Replacement Unit). Therefore, if a mouse fails to operate or should it perform
erratically, it may need a ball replacement. Because of the delicate nature of this
procedure, replacement of mouse balls should only be attempted by properly trained
personnel.
Before proceeding, determine the type of
mouse balls by examining the underside of the mouse. Domestic balls will be larger and
harder than foreign balls. Ball removal procedures differ depending upon the manufacturer
of the mouse. Foreign balls can be replaced using the pop-off method. Domestic balls are
replaced by using the twist-off method. Mouse balls are not usually static sensitive.
However, excessive handling can result in sudden discharge.
Upon completion of ball replacement, the
mouse may be used immediately. It is recommended that each replacer have a pair of spare
balls for maintaining optimum customer satisfaction. Any customer missing his balls should
suspect local personnel of removing these necessary items."
