Legend has it that there was a special Guru Meditation Number in Kickstart 1.2 and 1.3. If Exec got really confused, you would see
48454C50
as the error number. You couldn't find this error number in any manual or wherever you usually looked up those things.

Now, you would not think anything strange or funny about this number until you converted two and two numbers from the error number to decimal and looked up their ASCII values.

48=H, 45=E, 4C=L, 50=P

HELP

Just goes to show the general whackiness of the Amiga team until the suits got the better of them.