Today, get() and wait() take an optional Interruptible parameter, defaulting to Interruptible::notInterruptible() if none is provided. My impression is that this is an unsafe default, and that it is too easy to forget to provide an argument here, causing liveness issues. Some recent examples:

• SERVER-123948
• BF-43195
• SERVER-123640

We should consider no longer defaulting to Interruptible::notInterruptible(), and instead force callers to pass this explicitly if they want to be uninterruptible.