When you're your biggest enemy.

《辛普森一家》中两个长相相同的胖男子在门口持枪对峙，互相用枪指着对方，神情严肃。图上文字：When you finally catch the person that's been writing bad code all the time。适合表达自嘲、抓内鬼、程序员互坑、无语等情绪。