possible to hide html comments using sanitize in rails 2.0?

Is it possible to have comments stay commented out when using
sanitize?

For example, I have this in my view:

<%= sanitize @description %>

and @description = "<!-- end time -->"

but sanitize converts:

<!-- end time -->
to
&lt;!-- end time -->

so the words <!-- end time --> actually shows up on the website.

anyone know if it's possible to tell sanitize to leave html comments
alone?

I tried adding this to environment.rb but no luck:
config.action_view.sanitized_allowed_tags = '!--', '--'

anyone have any ideas? i've been stuck on this for a few days and we
can't launch till this is done :frowning: