No more no surprises
Debian has generally always had, as a rule, “sane defaults” and “no surprises”. This was completely shattered for me when Vim decided to hijack the mouse from my terminal and break all copy/paste functionality. This has occured since the release of Debian 9. I expect for my terminal to behave consistently, and this is broken every time I log in to a Debian 9 system where I have not configured Vim to disable this functionality.