A father and a son both have the same big birthmark on their butt. Believing that the two birthmarks are connected, the son scrubs his father's birthmark to remove it—but he just can't get rid of it.
2015
2019
2020
1968
2004
2009
2008
2007
2014
2017
2013
1985
1975
2003
1967
2011
2018