I did that on some university servers around 1999. We had a few Alphas dedicated to batch processing, and I set up S@H to run on them.

One catch was that the duration of batch jobs was limited to 12 hours, so I couldn't just fire and forget. I ended up scripting it so that when the job ended, it automatically resubmitted itself to the batch queue.

It took about a day before I got a surprisingly friendly e-mail from the sysadmin asking me to please stop.