Programming jokes

[ctorloey]

task main()
{
if (robot == working)
{Programmers = happy
}
else
Programmers = sad, depressed, unhappy
}
save save compile

I got one that my programming mentor told me:

Question: How are Halloween and Christmas alike?

Answer: They happen on the same day.

Does any one get this?
It is with the decimal number system and the octal number system. when you convert 31 (which is the date of Halloween) from octal to decimal it is 25 (which is the date of Christmas).