We are what we CONSISTENTLY do.
Every workout is 60 Minutes. From start to finish. While lots of the "good stuff" happens during the WOD it isn't the only part of your workout. Everything we do has a purpose and everything we do is a part of the overall results you get. You are what you consistently do. And you get what you consistently put effort to.
5 Minutes is a 12th of a class. You're 5 Min late one day, no big deal. You're 5 Min late everyday - you get what you consistently do. 5 minutes late doesn't seem like much but add that up.
5 Minutes late everyday means you miss 1 MONTH of class. A Month. Let that sink in.
I could get even more technical about how your workouts aren't as effective because your body isn't operating at it's peak without a warm up, or how you're more likely to injure yourself, or how you're missing out on tens of thousands of burned calories by being late - but it really comes down to this:
Be consistent and get the results you want. Don't throw away a month of training because you're use to leaving your house at a specific time. Make every minute count.
KB Warm Up
2R: 5 Presses + 50; OH Walk Each Side
20 Goblet Squats
20 Single Arm Swings
20 Around the Worlds
75 Double Unders
25 Push Ups
25 Pull Ups
25 KB Taters (1.5/1p)
Stimulus: Today's a long workout. Aim for a consistently high heart rate without peaking. Manageable sets are the key.