TAIPEI – A Taiwanese man has been nabbed for allegedly robbing three convenience stores, saying he was upset that nobody had celebrated his birthday, a report said Wednesday.

The 33-year-old, identified only by his surname Tseng, said his "erratic behaviour" was prompted by the birthday blues, the local China Post reported.

According to the police, Tseng admitted to suffering from psychiatric disorders, and he had a criminal record for theft, it said.

Tseng, who robbed the three stores in Taipei within 23 minutes, was found drunk and carrying 13,200 Taiwan dollars ($410) in cash at the time of his arrest, the report added.