slownsteady

Might be smart to have a 'qwik-cap' on hand. It's a heavy rubber cap with a clamp around it. If you have difficulties with removing the cap, or if you have to cut it, this would be a quick way of sealing it - if necessary. You can find them in a variety of sizes.

Redwood

I'd be real apprehensive about just cutting it off without having a means to seal it handy....

What it it's a backdoor into the GhostBusters Ecto Containment Unit or, something....