Mine does that sometimes too. I tricks me sometimes. I'll be checking in for the second time in an hour and it will say something like 6 notifications.
How can I get so many in such a short time? Then I check and nothing is new.
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"If you have men who will exclude any of God’s creatures from the shelter of compassion and pity, you will have men who will deal likewise with their fellow men." — St. Francis of Assisi, 1181-1226