Over 30 opens by one user in ~10 minutes...?

I’m not sure if this has anything to do with phpList or whether it’s just weird behavior on the part of a user. I sent a campaign today and most of the activity looks normal, but the “Open statistics” for that campaign show that one particular user (using a Gmail address) supposedly opened the message 37 times in about 10 minutes. Some of the opens were within a few seconds of each other, and at least two were apparently done quickly enough that they both have the same date/time.

Can I disregard this as just a user issue or is there something I should be looking at on my side? I don’t know what would cause anomalous open stats on the server side, but I figured it was worth asking the community for input about this.

This particular user now has over 145 opens. They appear in bursts, like this one with 19 opens in 7 minutes:

4 Jul 2020 20:40:43
4 Jul 2020 20:40:55
4 Jul 2020 20:41:22
4 Jul 2020 20:41:28
4 Jul 2020 20:42:01
4 Jul 2020 20:42:16
4 Jul 2020 20:42:34
4 Jul 2020 20:42:46
4 Jul 2020 20:42:56
4 Jul 2020 20:43:28
4 Jul 2020 20:44:04
4 Jul 2020 20:44:30
4 Jul 2020 20:44:42
4 Jul 2020 20:44:48
4 Jul 2020 20:45:10
4 Jul 2020 20:45:29
4 Jul 2020 20:45:52
4 Jul 2020 20:47:15
4 Jul 2020 20:47:16