The language might be fraught with word ambiguity or sentence amphiboly.

You should knock before you enter, unless you want to see me naked.

In another approach, antiglobulin neutralization was carried out by incubating the antiglobulin reagents directly with sugar-coated erythrocytes that had been sensitized with antisugar antibodies.

2005, James M. Efird, Left behind?: What the Bible Really Says about the End Times, Smyth & Helwys Publishing, →ISBN.