A High Level PJ

At the Archi@Mumbai meet few days back, Thando was recounting his recent pilgrimage trip to the Himalayas -
Thando: "Yar, jahan gaye the wo 6,800m ki unchai par to hogi!"
Sivvam: "Wahan par saas lene mein dikkat nai hoti?"
Me: "Tirth yatra par log in-laws ko lekar to jate hi hain."
Thando: (Ignoring me) "Par daudne se Oxygen nai mil pata hai."
Me: "Kyun? Tum daude to Oxygen peeche reh gaya?"