Ooh, you must. Also, since this one was Plan B you have to get in this cliched sequence of dialogue somewhere. It's just a must.

"So, onto Plan B!"
"What's Plan B?"
"We don't have a Plan B so at the moment Plan B is to think of a Plan B... or would that be Plan C?"

I'd love to see a one called Planning Permission where Jack has to ask someone's permission to take Ianto out. Perhaps Tosh makes him agree to a list of rules and sign a lot of forms in triplicate? Or maybe he comes 'round to pick Ianto up just as Ianto's parents have dropped in for a suprise visit.

I'll stop now. But if you don't write them I will... some day.