[Seaside] Forcing Seaside to timeout sessions?

[Rick Flower]

Hi all.. I was wondering if there's a way to force Seaside to purge all 
existing sessions that might be open.. I had adjusted my session timeout 
value to 8 hours to allow me to run w/o timing out my sessions, but I 
have a database connection for each Seaside session and have a LOT of 
stagnant Seaside sessions lying about and would like to do some house 
cleaning.. I tried forcing GC, but that didn't work..

Any ideas?