It only bothers me when I've already Googled the 问题 and have gotten nowhere. If I'm asking for help on something from someone online, it's because 谷歌 has failed to give me the information I need.
Yes, it only happened once. My lecturer once told me that and I felt like slapping him across the face. I'm not paying ridiculous 大学 fees for him to not do his job and educate his students.