While filming
Predator (1987), Winston returned to his hotel one
day, to find his shower crawling with frogs. Convinced that this was a
prank by
Arnold Schwarzenegger, he called in the help of members
of his special effects crew in catching the frogs in a pillow case and
releasing them into Arnold's bed. Neither Stan nor Arnold dared to bring
up the subject the next day. Years later, Winston was on a talk-show
and recounted the entire story, knowing Arnold would be a guest in that
show the next day. But the next day, Arnold commented on the story by
swearing he had nothing to do with the prank, upon which Winston's crew
members finally confessed they had played the prank on him. They knew
Arnold was innocent but had decided to let Winston get even with him
anyway.