Might want to keep this one handy. It's shown up on multiple discussion
groups. "phantom" USB connections. Device will think it is connecting,
disconnecting. If it isn't a damaged USB port, it might just be contaminated.
Found photos of a clean & dirty port.
After hitting it with a can of air to remove the dust/debris, I found a green
substance, shaded here in red, of contamination of the pins 4 & 5, which
according to the microusb wiki, is used for ID and or cable connection to
alert a device of a cable being connected.
Pulled the battery, dipped a LINT FREE cloth in alcohol, cleaned it, let it
dry, then hit it again with a blast of canned air, now it looks like this!
Not one issue since Monday.