I made a really stupid mistake when ordering Chinese food through Takeaway.com and choosing Bitcoin as my payment method. These Bitcoin payments are handled through Bitpay and I had forgotten that you basically need to just copy the transaction into Electrum and leave everything as is.
Now my mistake was changing the fee and having 'Replace by Fee' on by default, which caused the transaction to be delayed. Meaning that I had to wait until I'd gotten a couple of confirmations before the transaction was processed.
Since it can take quite some time before you get a couple of confirmations, I had to wait an additional 45 minutes before the order was accepted. You can imagine that I felt really stupid for messing with the settings in my Electrum wallet, though I do think that Bitcoin could have mentioned something about this on their payment page.
So, after 2 hours the food finally arrived and I don't think I've ever enjoyed Chinese food as much as today. To be fair, I think I would have enjoyed just about anything after that two hour waiting time...