That's a bit of an understatement, Lawrence! There was no trace of any solder at all on that 'joint'. 
But such mistakes can all too easily occur. You're in the middle of a complex task and a 'non-maskable interrupt' arises - such as a call to dinner from the domestic engineering department. So, feeling ravenous, you drop everything (well, almost everything 
) and dash off. Of course, when you do return later, it's a case of "Err, now let me see . . . where was I? Ah yes, I remember: I finished that bit."
Al.
But such mistakes can all too easily occur. You're in the middle of a complex task and a 'non-maskable interrupt' arises - such as a call to dinner from the domestic engineering department. So, feeling ravenous, you drop everything (well, almost everything ) and dash off. Of course, when you do return later, it's a case of "Err, now let me see . . . where was I? Ah yes, I remember: I finished that bit."Al.
