Last March, flying Kenyan Air from Nairobi, I bought a large bottle of water, inside the airport after security where the shops were. It was taken away from me at the gate and thrown away. Does anyone know if I buy a bottle of water at AMS before boarding for NBO if they will toss it away? On larger flights, I like to have a large bottle of water because sometimes it takes quite a while before they bring it to you on the plane. No sense of buying it if they will take it away.