I'm so glad that I found this forum :D you guys are so funny.
I've run out of bobbin thread while merrily sewing along when attaching a border to a quilt. When I get to the end of the seam and I go to cut the thread that is when I notice that there is NO bobbin thread :roll:
How about when you 'know' that you are going to be running out of bobbin thread and you obsessively watch the seam, while you are sewing, to see the 'exact' moment that you run out.