function foo()
    try
        error("error in foo")
    catch e
    end
end

function bar()
    try
        error("error in bar")
    catch e
        foo()
        rethrow(e)
    end
end

bar()

produces the misleading

ERROR: error in bar
Stacktrace:
 [1] foo() at ./REPL[1]:3
 [2] bar() at ./REPL[2]:5

This just hit me in a really wicked situation: The stacktrace actually lead me to a line erroneously throwing the reported exception. I fixed it (to throw the correct exception), but the same error kept showing, leaving me completely puzzled for quite some time...