>>For me, all it took was one instance where an assumption on my part led to problems. As you know, by default UDFPARMS is set to VALUE. I ran into a case where, unbeknownst to me, in someone else's code I was working on, this was changed to REFERENCE. Can you say, "KA-BOOM", boys and girls? I thought you could.:-)
>>
>>Needless to say, from that day forward, I always assign incoming variables to local ones where modification is necessary.
>
>Did you have a few choice words with your fellow coder?

Well, since she happened to be a friend, and since I was teaching her Fox at the time (this was several years ago, pre-VFP, btw). I took it as an opportunity to offer some, um, constructive critism. In short, I explained to her about what I call, "Mom's rule": Put things back the way you found them!