Cafephobia (from Greek kafe, "coffee") is the fear of coffee. This phobia is most common on young children. Triggers for cafephobia are accidentally spilling hot coffee onto them and getting sick of smelling coffee to the point that bother them. Sufferers would not want others to drink coffee near them. If someone come near a sufferer holding a coffee, he/she would tell them to get away from them or move away, and the smell of coffee would make them flee and feel anxious. If teacher drink coffee in the classroom, the sufferer would tell them to put away and not drinking it.
Although cafephobia is most commonly suffered by children, a few adults can suffer cafephobia as well, caused by the reasons mentioned as well as bitter taste and getting burned in the mouth by hot drink.