""We're a family" is code for working long hours, lots of overtime and they don't care about their employees."
"When they ask out of no where what clients can you bring with you."
"Lots of people standing at colleagues desks chatting. Either you'll be expected to be present at all times without a sufficient workload, or you'll be picking up the slack for co-workers.
Also, I've had lots of interviews where they told me they didn't expect me to have a 9-to-5 mentality; I tend to throw back a "sure, if the work is done by 3, I'd be okay with leaving early" and consider anybody who seriously objects to that not worth working for."