Why I do what I do the way that I do it

Because...
...it's more important for my students to speak than it is for them to conjugate verbs.
...there is only so much time, and I have to make it count.
..."I took three years of Spanish in high school, and I don't remember a thing."
...it's the best that I know how.  It's not the best possible, but it's what I've got.
...they have their phones.  Why shouldn't they be allowed to use them?
...my colleagues are brilliant.