Oohh... this would be so good for the underhanded C contest! Just mix is up with the comments which make the `do` look like (assuming good actor) an accidentally wrapped comment.
/* The following code does something, so here's the
// explanations of what happens. And here's what we actually
*/ do
printf("hey\n");
/* And now just count down */
while (some_check(--i));
Now spot that in a large file of real code!
