For 30 years every day old Moishe ate at "Abe's Kosher Delicatessen". Old Moishe was an honoured guest and had his own reserved stool at the counter. He was loved by everyone and was generous to all the servers and staff. Abe, the owner loved Moishe too.
One day Moishe didn't show at his regular time. Abe was worried a bit as he realized Old Moishe was a widower and lived alone but then got busy and forgot about Moishe's absence.
The next day, no Moishe.
Now Abe was worried. He phoned Moishe's number and got no answer. He even called a few local hospitals and even called Moishe's daughter in Israel to no avail. Abe couldn't sleep that night wondering what had happened.
Next day again no Moishe!
Now Abe was really concerned and just as he was about to call the cops and 911 he glanced out the window and saw Moishe going into "Goldberg's Deli" across the street. Abe took off out the door and raced across the street narrowly missing getting hit by a bus and confronted Moishe just as he was sitting down.
Abe screamed, "Where have you been! I lost sleep and spent good money phoning around about you and what are you doing here at Goldberg's. You know he's my worst enemy! Explain to me Moishe!"
Moishe looked at Abe and said calmly, "Settle down Abraham, settle down, You'll be having a heart attack. I'll be telling you what happened okay. I went to the dentist 3 days ago and had one of those root canals. Oy the pain! The dentist gave me some pills and said. 'Moishe, for a few days eat on the other side.'"