A junior dev I worked alongside a few years back got quite angry with me when we were facing an "interesting" problem - he was well into thinking how he would write code to solve the problem meanwhile I had googled and found an existing utility downloaded it and demonstrated that it worked - 0 lines of code required....

[NB To be fair I had the same sense of disappointment myself years before when I was quite proud of a package to do CLOS object persistence and a more experienced chap told me there already was something to do that...]