These are two quotes from the ancient Havamál (9th - 11th century AD) that shows the Vikings sure knew what too much beer could do and that they were a hospitable people.

Ej är så gott, som gott man säger,
öl för människors ätt.
Ty mindre en man, ju mera han dricker,
vet till sig vad tankar han har.
Translation:
It's not so good, as good they say,
beer to the human kind.
For the more a man drinks,
the less he knows his own thoughts.

Eld behöver, den in har kommit,
och kall har blivit om knäna.
Mat och kläder den man tarvar
som har över fjällen farit.

Vatten tarvar vandrarn, som kommer till måltid,
handduk och välvillig välkomst;
välvilligt sinne, om han sådant kan vinna,
samspråk och bjudning tillbaka.

Translation:
A fire is needed, for the one who came in
and whose knees have gotten cold.
Food and clothing needs the man
who came across the fjeld.

Water needs the traveller who came to the meal,
and towel and friendly welcome.
A benevolent mind, if such a thing he can win,
chatting and invitation in return.

The meaning of this last quote is a bit unclear, even in Swedish so that's why the translation is a bit fuzzy too. But I think the meaning of the quotes come across anyway.