Yeh they have, but that was it. They just accept the answer and move on. No follow ups.
I am not asking for it to be logical all the way, but at least make a bit of sense. They create holes in the plot to prolong the storylines. Classic soap opera, I guess, but it's worse when the character is a guest and they turn a - for example - 1 week storyline into a 4 week storyline by making you ignore something early on that would bring it all crashing down. Makes everyone involved look like idiots.