I was using hot spot to surf internet and cut and past content to openoffice writer component. I managed to copy required information from a webpage from http://www.heybaby.sg/havingchildren/art.html.
However, I met a nasty task of removing some tags. For eg,
 
"Enhanced Subsidies For Centre-Based Infant Care And Child Care

    Details
    FAQs

To help make infant and child care services more affordable for lower- and middle-income families, a new subsidy framework takes effect from 1 Apr 2013. Under the new subsidy framework, parents with Singapore Citizen children enrolled in licensed child care centres continue to be eligible for a Basic Subsidy of up to $600 for infant care and $300 for child care. "

When I tried to delete Details
                       FAQs
openoffice crashes.  I tried 3 or 4 times to study the issue.
Unfortunately, my data usage choke up to 3.3 gb within two hours surfing and 
copying. At last I manage to save the completed article. I was in for another
shock.  Whenever I open the file, openoffice just crashed. So I have to redo and erase bad copy which crashes openoffice.

I had exceeded my month quota of 3GB data plan.  I did not download any content from the internet. Nor play wireless.  My hotspot application record 3.3gb usage.

I still don't understand how openoffice crashes could lead to 3.3 GB of data usage.

Cheer
gregory chen