I can completely respect the perspective, but let me offer mine:
You met him and were welcomed to his home. Though you may not have had a shot of whiskey, you made a series of moments that are indeed... a memory.
On the occasion that you do have a sip/shot of whiskey, remember in fond of this time with such a figure and that:
"I had the opportunity to take a shot with Terkel, but I didn't." I can guarantee you that a story will be asked for and that makes the opportunity not missed, but a chance to reflect and explain a special moment for you.
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