恼人 | nǎo rén | annoying / irksome / to irritate | |
碍眼 | ài yǎn | to be an irksome presence (i.e. sth or sb one wishes were not there) | |
半路杀出个程咬金 | bàn lù shā chū gè Chéng Yǎo jīn | lit. Cheng Yaojin ambushes the enemy (saying) / fig. sb shows up unexpectedly and disrupts the plan / sb whose presence is regarded as irksome |