I tip my dealership dude (drive-train/Ford stuff) with gifts, not cash. I tip Ray (interior/SMB stuff) with cash... usually a rounding-up ($540 on the bill...$600 paid). I'm not sure I can explain why it is this way, but it works well for us all. Both of them answer the phone 24/7 as a result.
The dilemna is how to tip the forum dudes that do the same thing... answer my pleas for help 24/7
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'95 SMB E350 Quigley 7.3
https://www.taylorarts.com
... If you have to ask, you'll never understand...
"... torpedo'd, because we don't generally cotton to bullshit around here." -jage
"... do they ooch apart in the night?" -Dia