An example of how a single comma can completely change the meaning of a sentence!!!
This joke shows how important punctuation can be. As you can see below, a comma and an exclamation mark can completely change the meaning.
An English teacher wrote these words on the whiteboard: 'woman without her man is nothing'. The teacher then asked the students to punctuate the words correctly.
The men wrote: 'Woman, without her man, is nothing.'
The women wrote: 'Woman! Without her, man is nothing.'