Punctuation at the end of a DATE? what punctuation would you put at the end of a date?
You could check for a punctuation mark at the end of a text field, but not a date field as the data validation will reject entering punctuation at the end of a date in a date field.
PatternCount ( ",.!:;" ; Right ( trim (YourTextField ) ; 1 )
Sorry - typo.. I meant to say Data not date!
I'd also set field behavior on that field so that pressing the return key exits the field. This will keep the last character in the field from being a return character.