Related:

• Fertility is hereditary. If your parents didn't have any children, neither will you.
• Sterility is hereditary: if your parents didn't have children, neither will you.
• Skinner: Our next budget item: $12 for doorknob repair.
  Parents: Nay! [burning Willy tries to escape, but the doorknob falls off] Skinne...
• To understand your parents' love, bear your own children. Chinese Proverb
• You may be redneck... if your parents are first cousins.