In-laws are vacationing in London right now (wife's parents and aunt/uncle), so to keep in touch with the kids, I installed+configured Skype on their phones (these are folks in their 70s, no where close to tech savvy), I think they are good to go.

Last night we try to connect (I 'see' them online)...nothing, so we call.

Me: "Did you see or hear the skype notification?"
Grandma: "Was that you? My phone made a weird sound I never heard before and I saw your picture. I wasn't sure what to do so pressed the red button."
Me: "Its the same sound and picture I showed you before you guys left, remember? That's OK, the kids want to see you and say hi. Hang up and when you hear the sound and see my picture, click the green accept button"

I try again...ring..ring...nothing. About a second later we receive a text "Grandpa hit something and your picture went away. What do I do now?"

So, I try again...ring..ring...they finally pick up (we can only hear them)

Grandma: "Hello...hello? I don't hear or see anything, damn it Fred, what did you hit?"
Grandpa: "Nothing Betty, you aren't holding it right, turn it sideways .."
Wife: "Guys..we can hear you, can you see us?"
Grandpa: "Press this button with the line crossed through it .."
Wife: "Dad.."
Grandpa: "Hey!..See Betty, you had the phone turned wrong. Can you see us?"
Me: "No, you may have hit the video button..it looks like a little video camera, press it."
Grandma: "We did...nothing happened."
Me: "Are you sure? Try it again. The image may be grey or a little darkened, I don't remember."

Then we lose the sound.
Wife: "Oh good Lord they muted us. We're going to have to forget Skype and call them..."

All of a sudden we get video and sound. Cheers all around.

Then I hear in the background..

Uncle: "I thought 'PaperTrail' knew what he was doing? Apparently not."

I heard that and FU you, you old bastard. If you weren't a millionaire and paid for their London trip, I'd take 'knew what he was doing' and shove it up your ass when I see you.