It really was amusing, introducing wizards to the muggle world, the way their eyes go round when seeing everyday things and machinery. The first time seeing a toaster;
"Did you trap a dragon or something in that?!"
The first time using a computer;
"But Herm, what am I supposed to do with it?"
A TV;
"But you do have moving pictures, why did you get so surprised when coming to Hogwarts?"
Mobile;
"Now, exactly how does this mophilebone work?"
And, of course, the random comments from Luna;
"Did you know that nargels are drawn to that blender, Harry? There are five of them already."
Yeah, there are much worse ways to spend the day.