Gavin Ward's tool-assisted speedrun of Sonic 3 & Knuckles has no fewer than 160,027 re-records.

Java exceptions fall into two categories, called checked and unchecked exceptions. When you call a method that throws a checked exception, the compiler checks that you don't ignore it. You must tell the compiler what you are going to do about the exception if it is ever thrown. […] On the other hand, the compiler does not require you to keep track of unchecked exceptions. […] A checked exception describes a problem that is likely to occur at times, no matter how careful you are. The unchecked exceptions, on the other hand, are your fault.

Your Java programs will be more debuggable and expandable if you use local variables instead of instance variables...

All of the switchboard operators had been parties to it, including Marie Willis. Their dean, Alice Hart, collected […]