I remeber a funny incident.Mujhe Jammu jaana tha to mai apne ek friend se discuss kar raha tha ki waha ja ke kya kya karunga.Usne train ka naam puch to maine bata diya phir pucha kis class me jaana hai to maine bola AC 2 Tier.Ye sunte hi vo shock hoke bola ki train me kab se tire lagne laga.Thats a difference between a railfan and a common people