It's  Tough Getting Old...  
 
A  senior citizen goes in for his yearly physical with his wife  tagging along. 
  
When  the doctor enters the examination room he says, 'I will need  a urine sample, a stool sample, and a sperm sample.' 
 
The  man, being hard of hearing, turns to his wife and asks,  'What did he say?'  
   

The  wife yells back to him, 'GIVE HIM YOUR  UNDERWEAR!!!!