Shame on this guy with zero EQ !

I was told of a man in his early thirties, who visited a mobile phone shop in the neighbourhood several times, made enquiries and sought information. But, eventually, he bought a mobile phone and signed up a a two-year contract from another vendor elsewhere instead of coming back to this shop where he had benefitted from the information given and the staff has served him and provided him with information he wanted not just on one occasion but several. I personally feel that this guy needs to be told off about his bad social behaviour.

Worse, he bought a screen protector for his mobile phone from somewhere else and came to this shop that also sells screen protector and had the gut to ask the staff to help him paste the screen protector on his mobile phone which he bought elsewhere. Why didn't he buy the screen protector from this shop? I thought that would be the least he could do to compensate this shop somehow for taking up the staff's time. The staff was so obliging that he actually did it for him free-or-charge. But, I knew his blood was boiling inside him.

One day, when I was in the shop, a guy walked in and asked about one particular model of a Nokia phone, I was surprised that the staff was very indifferent and cold towards him. Later, this guy left the shop and the staff told me that was the guy he was talking about. Shame on him! This is a classic example of someone who might have high IQ (so what?) but ZERO EQ! In Singlish, we commonly refer to this type of guy as someone who "can study but has poor social behaviour"