Any of the following…
- An unhappy face – Without a smile, always
- A know-it-all attitude – Unwilling to learn. never listens to anyone else and keeps projecting self as the smartest among the group
- Thanklessness – Taking help from people and bashing them later
- Arrogance of any kind – Be it related to money, knowledge, power or strength
- A complaining nature – Complaining, providing a solution for it and implementing, even if at a small scale, is admirable; but just complaining is pathetic. Sort of negative mindset which only looks at the faults in others and in their surroundings.