Trojan Horse

WARNING! WARNING! WARNING!
 
IF YOU RECEIVE A GIFT IN THE SHAPE OF A LARGE WOODEN 
HORSE DO NOT DOWNLOAD IT!!!! It is EXTREMELY DESTRUCTIVE 
and will overwrite your ENTIRE CITY!
 
The "gift" is disguised as a large wooden horse about 
two stories tall. It tends to show up outside the city 
gates and appears to be abandoned. DO NOT let it through 
the gates! It contains hardware that is incompatible 
with Trojan programming, including a crowd of heavily 
armed Greek warriors that will destroy your army, sack 
your town, and kill your women and children. If you have 
already received such a gift, DO NOT OPEN IT! Take it 
back out of the city unopened and set fire to it by the 
beach. 

FORWARD THIS MESSAGE TO EVERYONE YOU KNOW!