How long does it take to get out of immigration at the airport?

Okay, here's that blurb, edited to sound a bit more like me (or, well, like a person):

"Ugh, immigration lines at the airport? Seriously, are they ever quick? It always feels like I'm stuck there for hours, right? Like, you've just survived a long flight, you're tired, and then...bam! The line from hell.

I'd guess it usually takes me about 18 minutes to get through, but honestly, that's probably wishful thinking. It totally depends. Think about holidays – Christmas, Thanksgiving, even just a long weekend – forget about it! The lines are insane. And some airports are just… worse than others, aren't they? Like, who designed these things? Did they want us to suffer?

I remember once, landing in Miami after a trip to South America, and I swear I aged five years in that line. My phone was dead, I was starving, and the guy in front of me kept coughing. Ugh.

So yeah, 18 minutes might be the average, but be prepared for a much longer wait, especially if you're flying in at a peak time. I'm always just crossing my fingers and hoping for the best, you know? Maybe this time it'll be different... maybe."