I didn't get direct answers to your query, but I got some suggestions for dealing with the problem.
One person told me to defuse an awkward situation if a story isn't well-received with a joke:
I find it helps to jokingly acknowledge when a story fell flat. "...and then I found $5"
Also when I make a joke that doesn't get a laugh, I'll look at the time on my phone and say "9:35. I'm calling it." or whatever. That gets a laugh usually and helps defuse the situation.
Another friend suggested it's all about practice, and bearing through it... (read more)
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