An OSB editor takes to task users of the term “and/or” – and makes a practical suggestion on how to avoid driving your editor mad:
“…. So how do you avoid this problem? The answer, as the muttering editor will tell you, is to simply say what you mean. If you mean or, say or; if you mean and, say and; if you mean one or the other or both, say just that. For example, the defendant may be charged with unlawful arrest or malicious prosecution, or both….” [Link to the OSB Legal Pubs blog post and/or.]