Marco S. was so frustrated by the line running outside his local Comcast store, he snapped this photo. At least the weather was nice.

Comcast customer Timothy Lee made a grave error in judgment. He decided to return his Comcast-owned cable modem to a Comcast customer service center… on a Saturday!

Long-time Comcast customers know only too well a Saturday visit to Comcast represents a major outing, with long lines that often extend outside and up to an hour or more waiting time.

Lee compared his visit to waiting in line at the post office, but that’s not really true except during the holidays — the post office is better organized and usually lacks the heavy-duty bulletproof glass and surly attitudes that separate Comcast’s “customer service agents” from their unhappy customers.

Predictably, Lee waited more than 30 minutes before his number was up.

Lee’s predicament is all too familiar. His only choice for high-speed Internet access is Comcast, and the cable company knows it. So just like your local Department of Motor Vehicles, there is no harm done if Comcast opens a customer service center with 10 available windows staffed by only two employees, one happily munching on pretzels ignoring the concert-length line during his 20-minute break.

Time Warner Cable’s service centers are not much better, although they usually have fewer windows to keep customers from getting their hopes up. Comcast’s bulletproof glass is also not in evidence at TWC locations, although the burly bank-like security guard is very apparent at some centers in sketchy neighborhoods. Time Warner Cable also offers seating, but visit wealthier suburban locations when possible, where comfortable couches replace the nasty hard benches or plastic furniture often found downtown.

Comcast was instantly ready to offer up the usual excuses:

Your recent visit to our Washington D.C. service center is certainly not the experience we want anyone to have. We’ve been working on  a multi-year project to revamp the hundreds of service centers we have around the country to better serve customers.  As part of that project, we will be remodeling the Michigan Avenue location and will open another service center in the District in early 2015.  We’re also introducing more options for customers to manage their accounts, including a new program we’re starting to roll out with The UPS Store to make them an authorized Comcast equipment return location.

It’s always better at Comcast sometime in the yet-to-be-determined future. Until then, suffer.