New role can connect to all dbs with no grants

Hi. I'm confused about how to restrict databases from roles. When I create
a new database, I thought I would have to grant connect to a role in order
for that role to connect to it and see its objects.

But...

[admin(at)toolbox:acct] 14:50:23> create database foo owner postgres;
CREATE DATABASE
[admin(at)toolbox:acct] 14:50:34> \c foo
psql (9.0.4, server 9.1.1)
WARNING: psql version 9.0, server version 9.1.
Some psql features might not work.
You are now connected to database "foo".
[admin(at)toolbox:foo] 14:51:15> create table stuff(id int);
CREATE TABLE
[admin(at)toolbox:foo] 14:51:31> create role bob login password 'secret';
CREATE ROLE
[admin(at)toolbox:foo] 14:51:57> \c foo bob
Password for user bob:
psql (9.0.4, server 9.1.1)
WARNING: psql version 9.0, server version 9.1.
Some psql features might not work.
You are now connected to database "foo" as user "bob".
[I did not grant access to bob, why can he connect? He can also see the
table metadata...]
[bob(at)toolbox:foo] 14:52:14> \dt
List of relations
Schema | Name | Type | Owner
--------+-------+-------+-------
public | stuff | table | admin
(1 row)

[bob(at)toolbox:foo] 14:52:16> \d stuff
Table "public.stuff"
Column | Type | Modifiers
--------+---------+-----------
id | integer |

[bob(at)toolbox:foo] 14:53:38> select * from stuff;
ERROR: permission denied for relation stuff

I expected that I'd have to do a GRANT CONNECT for this to occur.
Also, I tried REVOKE CONNECT ON DATABASE foo FROM bob, and he can still
connect as before.

What am I missing?

Thanks!
Gordon (9.1.1/Linux)

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