Nothing to worry about, the plant is and will be fine. In the grand scheme of things that can go wrong, knocking off a few leaves here and there really isn't a big deal. If it's a new cane that's still developing, then it will make new leaves. If it's an old growth, it won't replace THOSE leaves, but eventually new canes will develop...not as a result, but the plant will continue to grow and develop just fine.

No need to be devastated :)

Thanks for the good news! That's a relief :)