Dummy username choice

[fredsonnenwald]

Not sure if this is an issue really, but I've been thinking about the dummy username used in example commands. Currently this is mostly te1st I think, with some instances of foo1bar and possibly other things. I've been using abc12xyz in the training materials - I think this is more like what PhD students would be familiar with. Is there a standard dummy username widely used across the university? Should we be using it in the docs? Or should we at least pick one dummy login and stick to it everywhere?