wéixiū shīfu shuō kuài hǎole, yǒushí shì wǔ fēnzhōng, yǒushí shì bàn xiǎoshí

维修师傅说“快好了”，有时是五分钟，有时是半小时。

When the repairman says 'almost done', sometimes it means five minutes, and sometimes half an hour.