[squid-users] always_direct and never_direct confusion

The requirement is simple, all domain must be direct, except for
special_domain which should be obtained from parent proxy.

--squid.conf--
acl intra_domain dstdomain .internal.dom
acl intra_ip dst 10.0.0.0/8
acl special_domain dstdomain .example.com .example.net .example.org

cache_peer proxy.isp.net parent 8080 0 no-query
never_direct allow special_domain
always_direct allow intra_domain
always_direct allow intra_ip

---
This results that some request are obtained from parent proxy, and some 
are direct.
Tried other combination also, but this direct all request for all domain.
always_direct deny special_domain
always_direct allow all
TIA.
--beast