(Did you know “A joke a day keeps the doctor away”? Unless he happens to be your fun-Doctor, in which case enhanced empathy with him is the outcome!)

An old man went to Engg. College where he studied at.
He knocked on Room 23 of the hostel and said: “May I come in. I lived in this
room 30 yrs ago when I studied in this college.”
A young man opened the door & let him in.
The old man examined the room, fondly remembering everything.
He said: “The same old room, same old wooden table, ventilator & same old
window that opens to the garden & the same old bed”
When examining it he found a young girl under the bed.
Seeing  her  the old man went bonkers as he exclaimed, “…and the same girl, still not old even after 30 years!”  but was brought back to sanity by the girl remarking, “Oh, actually that was my mother ” !