Its Routine for Some Die hard Fans.
I give my example I am big fan of KKR until GG & SRK. IPL 2012 Final between 2012 nearly 80% of my friends supporting CSK & 20% supporting KKR.
Final match over around 11.15 pm to 11.30 pm, Believe me I literally broke every CSK doors that time. They closed their doors after CSK lost the final, They know "Kumar Aaj Aag Laga Dega, Darwaza Band Karo".
What a Childish mentality that time yaar.