How about when people say “say hi to so and so for me,” or “give a hug to so and so for me.” It seems to me that in 80-90% of those cases, the “hi” or the hug doesn’t make it to the intended recipient. So really, we are sending a “hi” or hug via an unreliable medium, but we make ourselves feel good by ignoring the unreliability. I guess this is one of those systems that could be improved by measuring and analysing some statistics.