XForms CR - 8.1.8 <xforms:trigger> example

The example code in 8.1.8 using <xforms:trigger> does remarkably little.

This email is being sent to www-forms-editor@w3.org with a view to the 
editors providing an improved code example in any future draft of the XForms 
specification.

Andrew Watt
"XHTML 2.0 - the W3C leading the Web to its full potential ... to implement 
yesterday's technology tomorrow"