90 YEARS OLD

was the birthday of an old guy and he went to a hospital to visit the doctor who was the son of his brother and he told the younger man:
-look, tonight to celebrate my 90th birthday I decided not to invite any from the family nor from my friends, but I invited 4 20 years old girls however I just can't have viagra because of my weak heart. is there one another method to get the same effect without the bad consequences?
-I have here this other pills that I'll be giving you but watch out and be very careful 'cause they are pretty effective, take just one, with that you have more than what you need however I will be giving you a big pack so you don't need to return too often.
the old man takes the pill quickly and when he's just crossed the door he thinks 'I'm 90 years old' so he takes other two, while he's waiting for a taxi he thinks 'these girls are 20 years old', so he takes three more, when he reaches home he thinks 'and they are 4', so he takes 4 more pills, when the time for the party aproachs he decides to take all the pills that still remain in the pack.
right the next day the doctor is heading for the hospital and he decides to pay a visit to his uncle to see how the night before was, for far he sees that half of the house was destroyed, the wall in the garden was completely down and all of the trees were totally unearthed and all of the metalic columns of the streets were twisted and overtwisted, the door in the house was torn in two, so the guy enters, all of the furniture was totally wasted and broken but a big mirror which only was scratched all the way. the doctor worries and calls
-UNCLE
then he hears:
-right here in the bathroom
the guy heads there and finds his uncle inside the bath-tube which was completely filled with pieces of ice, the old guy says then:
THEY....DID....NOT....ARRIVE!!!!