This is one of the worst airport that I've been to...

This is one of the worst airport that I've been to. The security check stuff took away my power bank as it has no marking stating the capacity. I had travelled to more than 10 countries with this power bank without any issue. After I expressed discontent, the guy yelled at me for 15 minutes asking me to get out of the airport. I'm very disappointed and upset. I strongly recommend avoiding this airport if possible.